-31.74% is the change from 901 to 615
Calculation steps:
[( 615 - 901 ) ÷ 901] x 100 = -31.74%
Formula
Percentage change = [(615 - 901) / 901] x 100
Subtract the new number by the original number
615 - 901 = -286
-286 ÷ 901 = -0.3174250832408435
-0.3174250832408435 x 100 = -31.74%