264.78% is the change from 230 to 839
Calculation steps:
[( 839 - 230 ) ÷ 230] x 100 = 264.78%
Formula
Percentage change = [(839 - 230) / 230] x 100
Subtract the new number by the original number
839 - 230 = 609
609 ÷ 230 = 2.6478260869565218
2.6478260869565218 x 100 = 264.78%