-35.67% is the change from 956 to 615
Calculation steps:
[( 615 - 956 ) ÷ 956] x 100 = -35.67%
Formula
Percentage change = [(615 - 956) / 956] x 100
Subtract the new number by the original number
615 - 956 = -341
-341 ÷ 956 = -0.35669456066945604
-0.35669456066945604 x 100 = -35.67%