-88.92% is the change from 839 to 93
Calculation steps:
[( 93 - 839 ) ÷ 839] x 100 = -88.92%
Formula
Percentage change = [(93 - 839) / 839] x 100
Subtract the new number by the original number
93 - 839 = -746
-746 ÷ 839 = -0.8891537544696066
-0.8891537544696066 x 100 = -88.92%