-54.66% is the change from 161 to 73
Calculation steps:
[( 73 - 161 ) ÷ 161] x 100 = -54.66%
Formula
Percentage change = [(73 - 161) / 161] x 100
Subtract the new number by the original number
73 - 161 = -88
-88 ÷ 161 = -0.546583850931677
-0.546583850931677 x 100 = -54.66%