-87.82% is the change from 747 to 91
Calculation steps:
[( 91 - 747 ) ÷ 747] x 100 = -87.82%
Formula
Percentage change = [(91 - 747) / 747] x 100
Subtract the new number by the original number
91 - 747 = -656
-656 ÷ 747 = -0.8781793842034806
-0.8781793842034806 x 100 = -87.82%