-35.8% is the change from 958 to 615
Calculation steps:
[( 615 - 958 ) ÷ 958] x 100 = -35.8%
Formula
Percentage change = [(615 - 958) / 958] x 100
Subtract the new number by the original number
615 - 958 = -343
-343 ÷ 958 = -0.35803757828810023
-0.35803757828810023 x 100 = -35.8%