-68.36% is the change from 493 to 156
Calculation steps:
[( 156 - 493 ) ÷ 493] x 100 = -68.36%
Formula
Percentage change = [(156 - 493) / 493] x 100
Subtract the new number by the original number
156 - 493 = -337
-337 ÷ 493 = -0.6835699797160243
-0.6835699797160243 x 100 = -68.36%