-82.15% is the change from 717 to 128
Calculation steps:
[( 128 - 717 ) ÷ 717] x 100 = -82.15%
Formula
Percentage change = [(128 - 717) / 717] x 100
Subtract the new number by the original number
128 - 717 = -589
-589 ÷ 717 = -0.8214783821478382
-0.8214783821478382 x 100 = -82.15%