-9.16% is the change from 677 to 615
Calculation steps:
[( 615 - 677 ) ÷ 677] x 100 = -9.16%
Formula
Percentage change = [(615 - 677) / 677] x 100
Subtract the new number by the original number
615 - 677 = -62
-62 ÷ 677 = -0.0915805022156573
-0.0915805022156573 x 100 = -9.16%