-53.28% is the change from 137 to 64
Calculation steps:
[( 64 - 137 ) ÷ 137] x 100 = -53.28%
Formula
Percentage change = [(64 - 137) / 137] x 100
Subtract the new number by the original number
64 - 137 = -73
-73 ÷ 137 = -0.5328467153284672
-0.5328467153284672 x 100 = -53.28%