-55.86% is the change from 145 to 64
Calculation steps:
[( 64 - 145 ) ÷ 145] x 100 = -55.86%
Formula
Percentage change = [(64 - 145) / 145] x 100
Subtract the new number by the original number
64 - 145 = -81
-81 ÷ 145 = -0.5586206896551724
-0.5586206896551724 x 100 = -55.86%