-35.87% is the change from 959 to 615
Calculation steps:
[( 615 - 959 ) ÷ 959] x 100 = -35.87%
Formula
Percentage change = [(615 - 959) / 959] x 100
Subtract the new number by the original number
615 - 959 = -344
-344 ÷ 959 = -0.3587069864442127
-0.3587069864442127 x 100 = -35.87%