The following data were taken from the Adjusted Trial Balance columns of the end$-$of$-$period spreadsheet for April $30$ for Abigail Company:

Accumulated Depreciation $$42,400$

Prepaid Rent $6,800$

Supplies $850$

Unearned Fees $7,310$

Trucks $49,300$

Cash $3,400$

Common Stock $2,000$

Retained Earnings $?$

Prepare a classified balance sheet.

i see the answer above and it is correct i have the answer sheet from my teacher but what was the equation used to find retained earnings?