-81.97% is the change from 987 to 178
Calculation steps:
[( 178 - 987 ) ÷ 987] x 100 = -81.97%
Formula
Percentage change = [(178 - 987) / 987] x 100
Subtract the new number by the original number
178 - 987 = -809
-809 ÷ 987 = -0.8196555217831814
-0.8196555217831814 x 100 = -81.97%