Task: Formula-prediction-context (source dataset: ti-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 |     |                                                              |       |                    |               |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
|  2 |     | LLC Design calculations for the UCC25600 controller          |       |                    |               |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
|  3 |     |                                                              |       |                    |               |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
|  4 |     |                                                              |       |                    |               |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
|  5 |     |                                                              |       |                    |               |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
|  6 |     |                                                              | Min   | Typ                | Max           |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
|  7 |     | Input voltage range  [Vin Volts]                             | 375   | 390                | 405           |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
|  8 |     | Output voltage  [Vout volts]                                 | -     | 24.5               | -             |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
|  9 |     | Rated output current [Iout A]                                | -     | 17                 | -             |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
| 10 |     | Rated output power [Pout W]                                  | -     | -                  | [Target Cell] |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
| 11 |     | Switching frequency [f Hz]                                   | -     |                    | 130000        |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
| 12 |     | Switching frequency during normal operation [f Hz]           | 70000 | -                  | 150000        |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
| 13 |     | Output voltage line regulation [Iout = 1.0A]                 | -     | 0.01               | -             |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
| 14 |     | Output voltage load regulation [Vin = 390V]                  | -     | 0.01               | -             |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
| 15 |     | Output voltage peak to peak ripple [Vin = 390V & Iout = 17A] | -     | -                  | 120mV         |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
| 16 |     | Efficiency [Vin = 390V & Iout = 17A]                         | -     |                    | 0.95          |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
| 17 |     | The secondary-side diode’s forward-voltage drop [VF V]       | -     | 0.7                | -             |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
| 18 |     | Assumed for the voltage drop due to power losses [Vloss V]   | -     | 2.0631578947368423 | -             | If the efficiency is assumed to be 95% (> 90% as required by the specifications), then 8% of the total power would be power losses. |     |     |     |     |     |     |     |     |     |
| 19 |     |                                                              |       |                    |               |                                                                                                                                     |     |     |     |     |     |     |     |     |     |
| 20 |     | Block diagram                                                |       |                    |               |                                                                                                                                     |     |     |     |     |     |     |     |     |     |



min_row: 1
max_row: 20
min_col: 1
max_col: 15
target_cell_row_idx: 10
target_cell_col_idx: 5
target_cell_value: 416.5
formula: =D8*D9