77.34% is the change from 512 to 908
Calculation steps:
[( 908 - 512 ) ÷ 512] x 100 = 77.34%
Formula
Percentage change = [(908 - 512) / 512] x 100
Subtract the new number by the original number
908 - 512 = 396
396 ÷ 512 = 0.7734375
0.7734375 x 100 = 77.34%