-95.48% is the change from 642 to 29
Calculation steps:
[( 29 - 642 ) ÷ 642] x 100 = -95.48%
Formula
Percentage change = [(29 - 642) / 642] x 100
Subtract the new number by the original number
29 - 642 = -613
-613 ÷ 642 = -0.9548286604361371
-0.9548286604361371 x 100 = -95.48%