20.25% is the change from 400 to 481
Calculation steps:
[( 481 - 400 ) ÷ 400] x 100 = 20.25%
Formula
Percentage change = [(481 - 400) / 400] x 100
Subtract the new number by the original number
481 - 400 = 81
81 ÷ 400 = 0.2025
0.2025 x 100 = 20.25%
Example