-93.89% is the change from 180 to 11
Calculation steps:
[( 11 - 180 ) ÷ 180] x 100 = -93.89%
Formula
Percentage change = [(11 - 180) / 180] x 100
Subtract the new number by the original number
11 - 180 = -169
-169 ÷ 180 = -0.9388888888888889
-0.9388888888888889 x 100 = -93.89%