53.52% is the change from 512 to 786
Calculation steps:
[( 786 - 512 ) ÷ 512] x 100 = 53.52%
Formula
Percentage change = [(786 - 512) / 512] x 100
Subtract the new number by the original number
786 - 512 = 274
274 ÷ 512 = 0.53515625
0.53515625 x 100 = 53.52%