82.21% is the change from 281 to 512
Calculation steps:
[( 512 - 281 ) ÷ 281] x 100 = 82.21%
Formula
Percentage change = [(512 - 281) / 281] x 100
Subtract the new number by the original number
512 - 281 = 231
231 ÷ 281 = 0.8220640569395018
0.8220640569395018 x 100 = 82.21%