68.36% is the change from 512 to 862
Calculation steps:
[( 862 - 512 ) ÷ 512] x 100 = 68.36%
Formula
Percentage change = [(862 - 512) / 512] x 100
Subtract the new number by the original number
862 - 512 = 350
350 ÷ 512 = 0.68359375
0.68359375 x 100 = 68.36%
Example