51.91% is the change from 549 to 834
Calculation steps:
[( 834 - 549 ) ÷ 549] x 100 = 51.91%
Formula
Percentage change = [(834 - 549) / 549] x 100
Subtract the new number by the original number
834 - 549 = 285
285 ÷ 549 = 0.5191256830601093
0.5191256830601093 x 100 = 51.91%