-85.19% is the change from 493 to 73
Calculation steps:
[( 73 - 493 ) ÷ 493] x 100 = -85.19%
Formula
Percentage change = [(73 - 493) / 493] x 100
Subtract the new number by the original number
73 - 493 = -420
-420 ÷ 493 = -0.8519269776876268
-0.8519269776876268 x 100 = -85.19%