79.49% is the change from 512 to 919
Calculation steps:
[( 919 - 512 ) ÷ 512] x 100 = 79.49%
Formula
Percentage change = [(919 - 512) / 512] x 100
Subtract the new number by the original number
919 - 512 = 407
407 ÷ 512 = 0.794921875
0.794921875 x 100 = 79.49%