50.77% is the change from 650 to 980
Calculation steps:
[( 980 - 650 ) ÷ 650] x 100 = 50.77%
Formula
Percentage change = [(980 - 650) / 650] x 100
Subtract the new number by the original number
980 - 650 = 330
330 ÷ 650 = 0.5076923076923077
0.5076923076923077 x 100 = 50.77%