264.07% is the change from 270 to 983
Calculation steps:
[( 983 - 270 ) ÷ 270] x 100 = 264.07%
Formula
Percentage change = [(983 - 270) / 270] x 100
Subtract the new number by the original number
983 - 270 = 713
713 ÷ 270 = 2.640740740740741
2.640740740740741 x 100 = 264.07%