210 - (210 / 100 * 30) =
210 - 63 = 147
Question: What is 30% off 210?
Step 1: Get the result of Number (210) / 100 * Percent (30).
210 / 100 * 30 = 63
Step 2: Subtract step one's result (63) from the number (210).
210 - 63 = 147
Result: 30% off 210 = 147.