298.74% is the change from 238 to 949
Calculation steps:
[( 949 - 238 ) ÷ 238] x 100 = 298.74%
Formula
Percentage change = [(949 - 238) / 238] x 100
Subtract the new number by the original number
949 - 238 = 711
711 ÷ 238 = 2.9873949579831933
2.9873949579831933 x 100 = 298.74%