-37.53% is the change from 493 to 308
Calculation steps:
[( 308 - 493 ) ÷ 493] x 100 = -37.53%
Formula
Percentage change = [(308 - 493) / 493] x 100
Subtract the new number by the original number
308 - 493 = -185
-185 ÷ 493 = -0.3752535496957404
-0.3752535496957404 x 100 = -37.53%