27.27% is the change from 770 to 980
Calculation steps:
[( 980 - 770 ) ÷ 770] x 100 = 27.27%
Formula
Percentage change = [(980 - 770) / 770] x 100
Subtract the new number by the original number
980 - 770 = 210
210 ÷ 770 = 0.2727272727272727
0.2727272727272727 x 100 = 27.27%