262.96% is the change from 270 to 980
Calculation steps:
[( 980 - 270 ) ÷ 270] x 100 = 262.96%
Formula
Percentage change = [(980 - 270) / 270] x 100
Subtract the new number by the original number
980 - 270 = 710
710 ÷ 270 = 2.6296296296296298
2.6296296296296298 x 100 = 262.96%