-83.08% is the change from 721 to 122
Calculation steps:
[( 122 - 721 ) ÷ 721] x 100 = -83.08%
Formula
Percentage change = [(122 - 721) / 721] x 100
Subtract the new number by the original number
122 - 721 = -599
-599 ÷ 721 = -0.8307905686546463
-0.8307905686546463 x 100 = -83.08%