118.95% is the change from 306 to 670
Calculation steps:
[( 670 - 306 ) ÷ 306] x 100 = 118.95%
Formula
Percentage change = [(670 - 306) / 306] x 100
Subtract the new number by the original number
670 - 306 = 364
364 ÷ 306 = 1.1895424836601307
1.1895424836601307 x 100 = 118.95%