221.24% is the change from 306 to 983
Calculation steps:
[( 983 - 306 ) ÷ 306] x 100 = 221.24%
Formula
Percentage change = [(983 - 306) / 306] x 100
Subtract the new number by the original number
983 - 306 = 677
677 ÷ 306 = 2.212418300653595
2.212418300653595 x 100 = 221.24%