-46.45% is the change from 155 to 83
Calculation steps:
[( 83 - 155 ) ÷ 155] x 100 = -46.45%
Formula
Percentage change = [(83 - 155) / 155] x 100
Subtract the new number by the original number
83 - 155 = -72
-72 ÷ 155 = -0.4645161290322581
-0.4645161290322581 x 100 = -46.45%