829.85% is the change from 67 to 623
Calculation steps:
[( 623 - 67 ) ÷ 67] x 100 = 829.85%
Formula
Percentage change = [(623 - 67) / 67] x 100
Subtract the new number by the original number
623 - 67 = 556
556 ÷ 67 = 8.298507462686567
8.298507462686567 x 100 = 829.85%