-17.67% is the change from 747 to 615
Calculation steps:
[( 615 - 747 ) ÷ 747] x 100 = -17.67%
Formula
Percentage change = [(615 - 747) / 747] x 100
Subtract the new number by the original number
615 - 747 = -132
-132 ÷ 747 = -0.17670682730923695
-0.17670682730923695 x 100 = -17.67%