234.94% is the change from 249 to 834
Calculation steps:
[( 834 - 249 ) ÷ 249] x 100 = 234.94%
Formula
Percentage change = [(834 - 249) / 249] x 100
Subtract the new number by the original number
834 - 249 = 585
585 ÷ 249 = 2.3493975903614457
2.3493975903614457 x 100 = 234.94%