50.31% is the change from 650 to 977
Calculation steps:
[( 977 - 650 ) ÷ 650] x 100 = 50.31%
Formula
Percentage change = [(977 - 650) / 650] x 100
Subtract the new number by the original number
977 - 650 = 327
327 ÷ 650 = 0.5030769230769231
0.5030769230769231 x 100 = 50.31%