-31.25% is the change from 64 to 44
Calculation steps:
[( 44 - 64 ) ÷ 64] x 100 = -31.25%
Formula
Percentage change = [(44 - 64) / 64] x 100
Subtract the new number by the original number
44 - 64 = -20
-20 ÷ 64 = -0.3125
-0.3125 x 100 = -31.25%
Example