-15.06% is the change from 724 to 615
Calculation steps:
[( 615 - 724 ) ÷ 724] x 100 = -15.06%
Formula
Percentage change = [(615 - 724) / 724] x 100
Subtract the new number by the original number
615 - 724 = -109
-109 ÷ 724 = -0.1505524861878453
-0.1505524861878453 x 100 = -15.06%