830.43% is the change from 69 to 642
Calculation steps:
[( 642 - 69 ) ÷ 69] x 100 = 830.43%
Formula
Percentage change = [(642 - 69) / 69] x 100
Subtract the new number by the original number
642 - 69 = 573
573 ÷ 69 = 8.304347826086957
8.304347826086957 x 100 = 830.43%