69.73% is the change from 512 to 869
Calculation steps:
[( 869 - 512 ) ÷ 512] x 100 = 69.73%
Formula
Percentage change = [(869 - 512) / 512] x 100
Subtract the new number by the original number
869 - 512 = 357
357 ÷ 512 = 0.697265625
0.697265625 x 100 = 69.73%