-59.44% is the change from 180 to 73
Calculation steps:
[( 73 - 180 ) ÷ 180] x 100 = -59.44%
Formula
Percentage change = [(73 - 180) / 180] x 100
Subtract the new number by the original number
73 - 180 = -107
-107 ÷ 180 = -0.5944444444444444
-0.5944444444444444 x 100 = -59.44%