-56.22% is the change from 731 to 320
Calculation steps:
[( 320 - 731 ) ÷ 731] x 100 = -56.22%
Formula
Percentage change = [(320 - 731) / 731] x 100
Subtract the new number by the original number
320 - 731 = -411
-411 ÷ 731 = -0.5622435020519836
-0.5622435020519836 x 100 = -56.22%