A sales clerk receives a monthly salary of $750 plus a commission of 4% on all sales over $3900. Wha

A sales clerk receives a monthly salary of $750 plus a commission of 4% on all sales over $3900. What did the clerk earn the month that she sold $12,800 in merchandise?

Calculate Commission Sales Eligible Amount:
Commission Sales Eligible Amount = Sales - 3900
Commission Sales Eligible Amount = 12800 - 3900
Commission Sales Eligible Amount = 8900

Calculate Commission Amount:
Commission Amount = Commission Sales Eligible Amount * Commission Percent
Commission Amount = 8900 * 4%
Commission Amount = 356

Calculate total earnings:
Total Earnings = Base Salary + Commission Amount
Total Earnings = 750 + 356
Total Earnings = 1106