137.66% is the change from 231 to 549
Calculation steps:
[( 549 - 231 ) ÷ 231] x 100 = 137.66%
Formula
Percentage change = [(549 - 231) / 231] x 100
Subtract the new number by the original number
549 - 231 = 318
318 ÷ 231 = 1.3766233766233766
1.3766233766233766 x 100 = 137.66%