-21.08% is the change from 650 to 513
Calculation steps:
[( 513 - 650 ) ÷ 650] x 100 = -21.08%
Formula
Percentage change = [(513 - 650) / 650] x 100
Subtract the new number by the original number
513 - 650 = -137
-137 ÷ 650 = -0.21076923076923076
-0.21076923076923076 x 100 = -21.08%