78.32% is the change from 512 to 913
Calculation steps:
[( 913 - 512 ) ÷ 512] x 100 = 78.32%
Formula
Percentage change = [(913 - 512) / 512] x 100
Subtract the new number by the original number
913 - 512 = 401
401 ÷ 512 = 0.783203125
0.783203125 x 100 = 78.32%