86.91% is the change from 512 to 957
Calculation steps:
[( 957 - 512 ) ÷ 512] x 100 = 86.91%
Formula
Percentage change = [(957 - 512) / 512] x 100
Subtract the new number by the original number
957 - 512 = 445
445 ÷ 512 = 0.869140625
0.869140625 x 100 = 86.91%