-51.36% is the change from 662 to 322
Calculation steps:
[( 322 - 662 ) ÷ 662] x 100 = -51.36%
Formula
Percentage change = [(322 - 662) / 662] x 100
Subtract the new number by the original number
322 - 662 = -340
-340 ÷ 662 = -0.513595166163142
-0.513595166163142 x 100 = -51.36%