-53.15% is the change from 683 to 320
Calculation steps:
[( 320 - 683 ) ÷ 683] x 100 = -53.15%
Formula
Percentage change = [(320 - 683) / 683] x 100
Subtract the new number by the original number
320 - 683 = -363
-363 ÷ 683 = -0.5314787701317716
-0.5314787701317716 x 100 = -53.15%