124.26% is the change from 305 to 684
Calculation steps:
[( 684 - 305 ) ÷ 305] x 100 = 124.26%
Formula
Percentage change = [(684 - 305) / 305] x 100
Subtract the new number by the original number
684 - 305 = 379
379 ÷ 305 = 1.2426229508196722
1.2426229508196722 x 100 = 124.26%