-6.68% is the change from 659 to 615
Calculation steps:
[( 615 - 659 ) ÷ 659] x 100 = -6.68%
Formula
Percentage change = [(615 - 659) / 659] x 100
Subtract the new number by the original number
615 - 659 = -44
-44 ÷ 659 = -0.06676783004552352
-0.06676783004552352 x 100 = -6.68%