127.78% is the change from 306 to 697
Calculation steps:
[( 697 - 306 ) ÷ 306] x 100 = 127.78%
Formula
Percentage change = [(697 - 306) / 306] x 100
Subtract the new number by the original number
697 - 306 = 391
391 ÷ 306 = 1.2777777777777777
1.2777777777777777 x 100 = 127.78%