-87.55% is the change from 514 to 64
Calculation steps:
[( 64 - 514 ) ÷ 514] x 100 = -87.55%
Formula
Percentage change = [(64 - 514) / 514] x 100
Subtract the new number by the original number
64 - 514 = -450
-450 ÷ 514 = -0.8754863813229572
-0.8754863813229572 x 100 = -87.55%