852.24% is the change from 67 to 638
Calculation steps:
[( 638 - 67 ) ÷ 67] x 100 = 852.24%
Formula
Percentage change = [(638 - 67) / 67] x 100
Subtract the new number by the original number
638 - 67 = 571
571 ÷ 67 = 8.522388059701493
8.522388059701493 x 100 = 852.24%