27.93% is the change from 512 to 655
Calculation steps:
[( 655 - 512 ) ÷ 512] x 100 = 27.93%
Formula
Percentage change = [(655 - 512) / 512] x 100
Subtract the new number by the original number
655 - 512 = 143
143 ÷ 512 = 0.279296875
0.279296875 x 100 = 27.93%