-87.04% is the change from 702 to 91
Calculation steps:
[( 91 - 702 ) ÷ 702] x 100 = -87.04%
Formula
Percentage change = [(91 - 702) / 702] x 100
Subtract the new number by the original number
91 - 702 = -611
-611 ÷ 702 = -0.8703703703703703
-0.8703703703703703 x 100 = -87.04%