-8.62% is the change from 673 to 615
Calculation steps:
[( 615 - 673 ) ÷ 673] x 100 = -8.62%
Formula
Percentage change = [(615 - 673) / 673] x 100
Subtract the new number by the original number
615 - 673 = -58
-58 ÷ 673 = -0.0861812778603269
-0.0861812778603269 x 100 = -8.62%