-45.31% is the change from 64 to 35
Calculation steps:
[( 35 - 64 ) ÷ 64] x 100 = -45.31%
Formula
Percentage change = [(35 - 64) / 64] x 100
Subtract the new number by the original number
35 - 64 = -29
-29 ÷ 64 = -0.453125
-0.453125 x 100 = -45.31%
Example