-9.85% is the change from 650 to 586
Calculation steps:
[( 586 - 650 ) ÷ 650] x 100 = -9.85%
Formula
Percentage change = [(586 - 650) / 650] x 100
Subtract the new number by the original number
586 - 650 = -64
-64 ÷ 650 = -0.09846153846153846
-0.09846153846153846 x 100 = -9.85%