-47.48% is the change from 139 to 73
Calculation steps:
[( 73 - 139 ) ÷ 139] x 100 = -47.48%
Formula
Percentage change = [(73 - 139) / 139] x 100
Subtract the new number by the original number
73 - 139 = -66
-66 ÷ 139 = -0.4748201438848921
-0.4748201438848921 x 100 = -47.48%