-57.31% is the change from 752 to 321
Calculation steps:
[( 321 - 752 ) ÷ 752] x 100 = -57.31%
Formula
Percentage change = [(321 - 752) / 752] x 100
Subtract the new number by the original number
321 - 752 = -431
-431 ÷ 752 = -0.5731382978723404
-0.5731382978723404 x 100 = -57.31%