-88.35% is the change from 781 to 91
Calculation steps:
[( 91 - 781 ) ÷ 781] x 100 = -88.35%
Formula
Percentage change = [(91 - 781) / 781] x 100
Subtract the new number by the original number
91 - 781 = -690
-690 ÷ 781 = -0.8834827144686299
-0.8834827144686299 x 100 = -88.35%