125.49% is the change from 306 to 690
Calculation steps:
[( 690 - 306 ) ÷ 306] x 100 = 125.49%
Formula
Percentage change = [(690 - 306) / 306] x 100
Subtract the new number by the original number
690 - 306 = 384
384 ÷ 306 = 1.2549019607843137
1.2549019607843137 x 100 = 125.49%