4475% is the change from 12 to 549
Calculation steps:
[( 549 - 12 ) ÷ 12] x 100 = 4475%
Formula
Percentage change = [(549 - 12) / 12] x 100
Subtract the new number by the original number
549 - 12 = 537
537 ÷ 12 = 44.75
44.75 x 100 = 4475%
Example