30 - (30 / 100 * 55) =
30 - 16.5 = 13.50
Question: What is 55% off 30?
Step 1: Get the result of Number (30) / 100 * Percent (55).
30 / 100 * 55 = 16.5
Step 2: Subtract step one's result (16.5) from the number (30).
30 - 16.5 = 13.50
Result: 55% off 30 = 13.50.