-18.89% is the change from 180 to 146
Calculation steps:
[( 146 - 180 ) ÷ 180] x 100 = -18.89%
Formula
Percentage change = [(146 - 180) / 180] x 100
Subtract the new number by the original number
146 - 180 = -34
-34 ÷ 180 = -0.18888888888888888
-0.18888888888888888 x 100 = -18.89%