Task: Formula-prediction-context (source dataset: pge-random)

You are given an table region extracted from a real Excel spreadsheet, which is centered around a cell called "Target Cell" (labeled as "[Target Cell]" shown in the table below). The table region below includes up to 10 rows above/below the Target Cell, and 10 columns to the left/right of the Target Cell. 

Your task is to analyze the table context surrounding the Target Cell, and predict the most likely Excel formula that should go in the Target Cell. If multiple formulas are possible, choose the most reasonable or commonly used based on context.

1. Please follow the standard formula syntax in Excel, e.g. always begins with an equal sign (=).
2. Base your predicted formula on the surrounding table context, e.g., column headers, annotations, and data values in nearby cells.
3. No explanation — just output the formula itself in a JSON format: {"formula": "your_formula_here"}.

Input Excel Snippet in Markdown format:
|    | A   | B                                                                                                                                                                                              | C   | D   | E    | F                            | G                         | H              | I       | J   | K   | L   | M   | N   | O   |
|---:|:----|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:----|:----|:-----|:-----------------------------|:--------------------------|:---------------|:--------|:----|:----|:----|:----|:----|:----|
|  1 |     | Pacific Gas and Electric Company                                                                                                                                                               |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
|  2 |     | VARIABLE PRICE FOR AB1613 ELIGIBLE COMBINED HEAT & POWER FACILITIES1                                                                                                                           |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
|  3 |     | EFFECTIVE March 1 - 31, 2018                                                                                                                                                                   |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
|  4 |     | Published 03/09/2018                                                                                                                                                                           |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
|  5 |     | Prepared pursuant to Decision D.09-12-042                                                                                                                                                      |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
|  6 |     |                                                                                                                                                                                                |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
|  7 |     | 2018-03-01 00:00:00                                                                                                                                                                            |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
|  8 |     | Variable Price Component2                                                                                                                                                                      |     |     |      |                              |                           | Variable Price |         |     |     |     |     |     |     |
|  9 |     | Variable price in $/kWh is calculated based on substituting the variables below into the formula adopted in D.09-12-042                                                                        |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
|    |     |                                                                                                                                                                                                |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
|    |     | [(Monthly bidweek gas price + Intrastate gas transportation rate)/1,000,000* Heat Rate] + Variable O&M                                                                                         |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
| 10 |     | Variable price = [(Monthly bidweek gas price + Intrastate gas transportation rate)/1,000,000* Heat Rate] + Variable O&M                                                                        |     |     |      |                              |                           | [Target Cell]  | $/kWh   |     |     |     |     |     |     |
| 11 |     |                                                                                                                                                                                                |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
| 12 |     | Monthly Bidweek Gas Price                                                                                                                                                                      |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
| 13 |     | Monthly bidweek gas price shall be calculated as the average of monthly bidweek gas price indices at PG&E Citygate as reported in Gas Daily, Natural Gas Intelligence, and Natural Gas Weekly. |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
| 14 |     |                                                                                                                                                                                                |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
| 15 |     |                                                                                                                                                                                                |     |     |      |                              | Monthly Bidweek Gas Price | 2.75           | $/MMBtu |     |     |     |     |     |     |
| 16 |     |                                                                                                                                                                                                |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
| 17 |     | Intrastate Gas Transportation                                                                                                                                                                  |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
| 18 |     | Intrastate gas transportation rate shall be the tariffed intrastate gas transportation rate for large electric generators as published in the PG&E Gas Tariffs G-EG and G-SUR.                 |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
| 19 |     |                                                                                                                                                                                                |     |     |      |                              |                           |                |         |     |     |     |     |     |     |
| 20 |     |                                                                                                                                                                                                |     |     | G-EG | PG&E AL 3919-G, Non-Backbone |                           | 1.277          | $/MMBtu |     |     |     |     |     |     |



min_row: 1
max_row: 20
min_col: 1
max_col: 15
target_cell_row_idx: 10
target_cell_col_idx: 8
target_cell_value: 0.031494
formula: =ROUND(((H15+H23)/1000000*H28)+H46,6)