270.95% is the change from 148 to 549
Calculation steps:
[( 549 - 148 ) ÷ 148] x 100 = 270.95%
Formula
Percentage change = [(549 - 148) / 148] x 100
Subtract the new number by the original number
549 - 148 = 401
401 ÷ 148 = 2.7094594594594597
2.7094594594594597 x 100 = 270.95%