-30.9% is the change from 958 to 662
Calculation steps:
[( 662 - 958 ) ÷ 958] x 100 = -30.9%
Formula
Percentage change = [(662 - 958) / 958] x 100
Subtract the new number by the original number
662 - 958 = -296
-296 ÷ 958 = -0.3089770354906054
-0.3089770354906054 x 100 = -30.9%