-23.26% is the change from 417 to 320
Calculation steps:
[( 320 - 417 ) ÷ 417] x 100 = -23.26%
Formula
Percentage change = [(320 - 417) / 417] x 100
Subtract the new number by the original number
320 - 417 = -97
-97 ÷ 417 = -0.23261390887290168
-0.23261390887290168 x 100 = -23.26%