27.73% is the change from 512 to 654
Calculation steps:
[( 654 - 512 ) ÷ 512] x 100 = 27.73%
Formula
Percentage change = [(654 - 512) / 512] x 100
Subtract the new number by the original number
654 - 512 = 142
142 ÷ 512 = 0.27734375
0.27734375 x 100 = 27.73%