The table shows the regular prices and sale prices of items at 4 different stores. Select the correct percent of discount offered by each store.
Store A: Price: $68.20, Sale Price: $51.15, Percent of Discount: ?
Store B: Price: $125.40, Sale Price: $100.32, Percent of Discount: ?
Store C: Price: $269.75, Sale Price: $215.80, Percent of Discount: ?
Store D: Price: $38.60, Sale Price: $32.81 Percent of Discount: ?

Percent of Discounts: 15%, 35%, 20%, 30%