-56.39% is the change from 493 to 215
Calculation steps:
[( 215 - 493 ) ÷ 493] x 100 = -56.39%
Formula
Percentage change = [(215 - 493) / 493] x 100
Subtract the new number by the original number
215 - 493 = -278
-278 ÷ 493 = -0.563894523326572
-0.563894523326572 x 100 = -56.39%