210.13% is the change from 306 to 949
Calculation steps:
[( 949 - 306 ) ÷ 306] x 100 = 210.13%
Formula
Percentage change = [(949 - 306) / 306] x 100
Subtract the new number by the original number
949 - 306 = 643
643 ÷ 306 = 2.1013071895424837
2.1013071895424837 x 100 = 210.13%