-53.17% is the change from 662 to 310
Calculation steps:
[( 310 - 662 ) ÷ 662] x 100 = -53.17%
Formula
Percentage change = [(310 - 662) / 662] x 100
Subtract the new number by the original number
310 - 662 = -352
-352 ÷ 662 = -0.5317220543806647
-0.5317220543806647 x 100 = -53.17%