-83.16% is the change from 493 to 83
Calculation steps:
[( 83 - 493 ) ÷ 493] x 100 = -83.16%
Formula
Percentage change = [(83 - 493) / 493] x 100
Subtract the new number by the original number
83 - 493 = -410
-410 ÷ 493 = -0.8316430020283976
-0.8316430020283976 x 100 = -83.16%