-63.08% is the change from 650 to 240
Calculation steps:
[( 240 - 650 ) ÷ 650] x 100 = -63.08%
Formula
Percentage change = [(240 - 650) / 650] x 100
Subtract the new number by the original number
240 - 650 = -410
-410 ÷ 650 = -0.6307692307692307
-0.6307692307692307 x 100 = -63.08%