81.45% is the change from 512 to 929
Calculation steps:
[( 929 - 512 ) ÷ 512] x 100 = 81.45%
Formula
Percentage change = [(929 - 512) / 512] x 100
Subtract the new number by the original number
929 - 512 = 417
417 ÷ 512 = 0.814453125
0.814453125 x 100 = 81.45%