-23.44% is the change from 418 to 320
Calculation steps:
[( 320 - 418 ) ÷ 418] x 100 = -23.44%
Formula
Percentage change = [(320 - 418) / 418] x 100
Subtract the new number by the original number
320 - 418 = -98
-98 ÷ 418 = -0.23444976076555024
-0.23444976076555024 x 100 = -23.44%