-77.13% is the change from 621 to 142
Calculation steps:
[( 142 - 621 ) ÷ 621] x 100 = -77.13%
Formula
Percentage change = [(142 - 621) / 621] x 100
Subtract the new number by the original number
142 - 621 = -479
-479 ÷ 621 = -0.7713365539452496
-0.7713365539452496 x 100 = -77.13%