306.02% is the change from 83 to 337
Calculation steps:
[( 337 - 83 ) ÷ 83] x 100 = 306.02%
Formula
Percentage change = [(337 - 83) / 83] x 100
Subtract the new number by the original number
337 - 83 = 254
254 ÷ 83 = 3.0602409638554215
3.0602409638554215 x 100 = 306.02%