-24.62% is the change from 650 to 490
Calculation steps:
[( 490 - 650 ) ÷ 650] x 100 = -24.62%
Formula
Percentage change = [(490 - 650) / 650] x 100
Subtract the new number by the original number
490 - 650 = -160
-160 ÷ 650 = -0.24615384615384617
-0.24615384615384617 x 100 = -24.62%