220.26% is the change from 306 to 980
Calculation steps:
[( 980 - 306 ) ÷ 306] x 100 = 220.26%
Formula
Percentage change = [(980 - 306) / 306] x 100
Subtract the new number by the original number
980 - 306 = 674
674 ÷ 306 = 2.2026143790849675
2.2026143790849675 x 100 = 220.26%