-10.62% is the change from 650 to 581
Calculation steps:
[( 581 - 650 ) ÷ 650] x 100 = -10.62%
Formula
Percentage change = [(581 - 650) / 650] x 100
Subtract the new number by the original number
581 - 650 = -69
-69 ÷ 650 = -0.10615384615384615
-0.10615384615384615 x 100 = -10.62%