855.22% is the change from 67 to 640
Calculation steps:
[( 640 - 67 ) ÷ 67] x 100 = 855.22%
Formula
Percentage change = [(640 - 67) / 67] x 100
Subtract the new number by the original number
640 - 67 = 573
573 ÷ 67 = 8.552238805970148
8.552238805970148 x 100 = 855.22%