-90.3% is the change from 629 to 61
Calculation steps:
[( 61 - 629 ) ÷ 629] x 100 = -90.3%
Formula
Percentage change = [(61 - 629) / 629] x 100
Subtract the new number by the original number
61 - 629 = -568
-568 ÷ 629 = -0.9030206677265501
-0.9030206677265501 x 100 = -90.3%