-15.21% is the change from 493 to 418
Calculation steps:
[( 418 - 493 ) ÷ 493] x 100 = -15.21%
Formula
Percentage change = [(418 - 493) / 493] x 100
Subtract the new number by the original number
418 - 493 = -75
-75 ÷ 493 = -0.15212981744421908
-0.15212981744421908 x 100 = -15.21%