77.73% is the change from 512 to 910
Calculation steps:
[( 910 - 512 ) ÷ 512] x 100 = 77.73%
Formula
Percentage change = [(910 - 512) / 512] x 100
Subtract the new number by the original number
910 - 512 = 398
398 ÷ 512 = 0.77734375
0.77734375 x 100 = 77.73%
Example