-51.33% is the change from 150 to 73
Calculation steps:
[( 73 - 150 ) ÷ 150] x 100 = -51.33%
Formula
Percentage change = [(73 - 150) / 150] x 100
Subtract the new number by the original number
73 - 150 = -77
-77 ÷ 150 = -0.5133333333333333
-0.5133333333333333 x 100 = -51.33%