-81.87% is the change from 353 to 64
Calculation steps:
[( 64 - 353 ) ÷ 353] x 100 = -81.87%
Formula
Percentage change = [(64 - 353) / 353] x 100
Subtract the new number by the original number
64 - 353 = -289
-289 ÷ 353 = -0.8186968838526912
-0.8186968838526912 x 100 = -81.87%