-88.98% is the change from 717 to 79
Calculation steps:
[( 79 - 717 ) ÷ 717] x 100 = -88.98%
Formula
Percentage change = [(79 - 717) / 717] x 100
Subtract the new number by the original number
79 - 717 = -638
-638 ÷ 717 = -0.8898186889818689
-0.8898186889818689 x 100 = -88.98%