-36.63% is the change from 101 to 64
Calculation steps:
[( 64 - 101 ) ÷ 101] x 100 = -36.63%
Formula
Percentage change = [(64 - 101) / 101] x 100
Subtract the new number by the original number
64 - 101 = -37
-37 ÷ 101 = -0.36633663366336633
-0.36633663366336633 x 100 = -36.63%