To calculate 30% off of 20, you first need to find 30% of 20.
Step 1: Convert the percentage to a decimal.
30% as a decimal is 0.30.
Step 2: Multiply the decimal by the original amount.
0.30 × 20 = 6.
So, 30% off of 20 is 6. This means you would subtract 6 from 20, leaving you with 14.