-34.57% is the change from 940 to 615
Calculation steps:
[( 615 - 940 ) ÷ 940] x 100 = -34.57%
Formula
Percentage change = [(615 - 940) / 940] x 100
Subtract the new number by the original number
615 - 940 = -325
-325 ÷ 940 = -0.34574468085106386
-0.34574468085106386 x 100 = -34.57%