20.98% is the change from 510 to 617
Calculation steps:
[( 617 - 510 ) ÷ 510] x 100 = 20.98%
Formula
Percentage change = [(617 - 510) / 510] x 100
Subtract the new number by the original number
617 - 510 = 107
107 ÷ 510 = 0.20980392156862746
0.20980392156862746 x 100 = 20.98%