-56.93% is the change from 743 to 320
Calculation steps:
[( 320 - 743 ) ÷ 743] x 100 = -56.93%
Formula
Percentage change = [(320 - 743) / 743] x 100
Subtract the new number by the original number
320 - 743 = -423
-423 ÷ 743 = -0.5693135935397039
-0.5693135935397039 x 100 = -56.93%