81.56% is the change from 282 to 512
Calculation steps:
[( 512 - 282 ) ÷ 282] x 100 = 81.56%
Formula
Percentage change = [(512 - 282) / 282] x 100
Subtract the new number by the original number
512 - 282 = 230
230 ÷ 282 = 0.8156028368794326
0.8156028368794326 x 100 = 81.56%