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   |
|---:|:-----|:----|:---------------------------------------------------|:----|:--------------------|:-------------------------------------------------|:---------------------------|:--------------|:----|
| 20 | 109  |     | Common + General + Intangible Depreciation Reserve |     | -374136291.81491613 | 10-AccDep, L. 701, col 1                         | Negative End of Year Value | 109           |     |
| 21 | 110  |     | Total Accumulated Depreciation Reserve             |     | -3386294573.9721017 | Line 108 + Line 109                              |                            | 110           |     |
| 22 |      |     |                                                    |     |                     |                                                  |                            |               |     |
| 23 | 111  | a   | Accumulated Deferred Income Taxes                  |     | -1434879249.2679677 | 14-ADIT, L. 104, col 2                           | End of Year Value          | 111           | a   |
| 24 | 111  | b   | Excess Acccumulated Deferred Income Taxes          |     | -567366654.7126127  | 17-RegAssets-1, L. 201                           | End of Year Value          | 111           | b   |
| 25 | 111  | c   | Total Excess and Accumulated Deferred Income Taxes |     | -2002245903.9805803 | Line 111a + Line 111b                            | End of Year Value          | 111           | c   |
| 26 | 112  |     | Network Upgrade Credits (Customer Advances)        |     | -218347407.13       | 15-NUC, L. 103                                   | Negative End of Year Value | 112           |     |
| 27 | 113  |     | Unfunded Reserves                                  |     | -16847249.681267284 | 16-UnfundedReserves, L. 101, col 2               | End of Year Value          | 113           |     |
| 28 | 114  |     | Other Regulatory Assets or Liabilities             |     | 0                   | 17-RegAssets-1, L. 100                           | End of Year Value          | 114           |     |
| 29 |      |     |                                                    |     |                     |                                                  |                            |               |     |
| 30 | 115  |     | Rate Base                                          |     | 8398507800.594059   | Sum of Lines 103, 107, 110 and Lines 111c to 114 |                            | [Target Cell] |     |
| 31 |      |     |                                                    |     |                     |                                                  |                            |               |     |
| 32 |      |     | 2) ROE and Capitalization Calculations             |     |                     |                                                  |                            |               |     |
| 33 | Line |     | Description                                        |     | Values              | Source                                           | Notes                      | Line          |     |
| 34 |      |     | Debt                                               |     |                     |                                                  |                            |               |     |
| 35 | 200  |     | Long Term Debt Amount                              |     | 19830937825.19348   | 5-CostofCap-1, L. 110                            |                            | 200           |     |
| 36 | 201  |     | Long Term Debt Cost Percentage                     |     | 0.0414              | 5-CostofCap-3, L. 114                            |                            | 201           |     |
| 37 | 202  |     | Cost of Long Term Debt                             |     | 821000825.9630101   | Line 200 * Line 201                              |                            | 202           |     |
| 38 |      |     |                                                    |     |                     |                                                  |                            |               |     |
| 39 |      |     | Preferred Stock                                    |     |                     |                                                  |                            |               |     |
| 40 | 203  |     | Preferred Stock Amount                             |     | 252054300.32        | 5-CostofCap-1, L. 114                            |                            | 203           |     |



min_row: 20
max_row: 40
min_col: 1
max_col: 9
target_cell_row_idx: 30
target_cell_col_idx: 8
target_cell_value: 115
formula: =A30