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   |
|---:|:-----------|:--------------|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:----|:----|:----|:---------|:----|:----|:----|:----|:----|
|  1 | Line Item? |               |                                                                                                                                                                                                                                                |     |     |     |          |     |     |     |     |     |
|  2 |            |               | PG&E On-Bill Financing Tier1A Workbook                                                                                                                                                                                                         |     |     |     |          |     |     |     |     |     |
|  3 |            |               | Version 2 | Publish Date: 2022-03-22                                                                                                                                                                                                           |     |     |     |          |     |     |     |     |     |
|  4 |            |               |                                                                                                                                                                                                                                                |     |     |     |          |     |     |     |     |     |
|  5 |            |               | Before filling out the Tier1A Workbook, consider filling out this Pre-Check page. The Pre-Check page will see if your project details meet key eligibility requirements to help figure out if your project is suitable for the Tier1A pathway. |     |     |     |          |     |     |     |     |     |
|  6 |            |               |                                                                                                                                                                                                                                                |     |     |     |          |     |     |     |     |     |
|  7 |            | [Target Cell] | Preliminary Eligibility Inputs                                                                                                                                                                                                                 |     |     |     |          |     |     |     |     |     |
|  8 |            |               |                                                                                                                                                                                                                                                |     |     |     |          |     |     |     |     |     |
|  9 |            |               | Building Type (choose from dropdown)                                                                                                                                                                                                           |     |     |     |          |     |     |     |     |     |
| 10 |            |               | Measure (choose from dropdown)                                                                                                                                                                                                                 |     |     |     |          |     |     |     |     |     |
| 11 |            |               | Estimated Percentage of End-Use Being Replaced (%)                                                                                                                                                                                             |     |     |     |          |     |     |     |     |     |
| 12 |            |               | Electric or Gas System? (choose from dropdown)                                                                                                                                                                                                 |     |     |     |          |     |     |     |     |     |
| 13 |            |               | Project Costs ($)                                                                                                                                                                                                                              |     |     |     |          |     |     |     |     |     |
| 14 |            |               |                                                                                                                                                                                                                                                |     |     |     |          |     |     |     |     |     |
| 15 |            |               |                                                                                                                                                                                                                                                |     |     |     | Electric | Gas |     |     |     |     |
| 16 |            |               | Total Building Consumption (kWh/yr or therms/yr)                                                                                                                                                                                               |     |     |     |          |     |     |     |     |     |
| 17 |            |               | Total Energy Costs ($/yr)                                                                                                                                                                                                                      |     |     |     |          |     |     |     |     |     |



min_row: 1
max_row: 17
min_col: 1
max_col: 12
target_cell_row_idx: 7
target_cell_col_idx: 2
target_cell_value: None
formula: =IF(A7="","","R"&100+COUNTA(A$7:A7))