-55.12% is the change from 713 to 320
Calculation steps:
[( 320 - 713 ) ÷ 713] x 100 = -55.12%
Formula
Percentage change = [(320 - 713) / 713] x 100
Subtract the new number by the original number
320 - 713 = -393
-393 ÷ 713 = -0.5511921458625526
-0.5511921458625526 x 100 = -55.12%