-81.46% is the change from 971 to 180
Calculation steps:
[( 180 - 971 ) ÷ 971] x 100 = -81.46%
Formula
Percentage change = [(180 - 971) / 971] x 100
Subtract the new number by the original number
180 - 971 = -791
-791 ÷ 971 = -0.8146240988671473
-0.8146240988671473 x 100 = -81.46%