-87.94% is the change from 771 to 93
Calculation steps:
[( 93 - 771 ) ÷ 771] x 100 = -87.94%
Formula
Percentage change = [(93 - 771) / 771] x 100
Subtract the new number by the original number
93 - 771 = -678
-678 ÷ 771 = -0.8793774319066148
-0.8793774319066148 x 100 = -87.94%