-81.98% is the change from 988 to 178
Calculation steps:
[( 178 - 988 ) ÷ 988] x 100 = -81.98%
Formula
Percentage change = [(178 - 988) / 988] x 100
Subtract the new number by the original number
178 - 988 = -810
-810 ÷ 988 = -0.819838056680162
-0.819838056680162 x 100 = -81.98%