297.4% is the change from 154 to 612
Calculation steps:
[( 612 - 154 ) ÷ 154] x 100 = 297.4%
Formula
Percentage change = [(612 - 154) / 154] x 100
Subtract the new number by the original number
612 - 154 = 458
458 ÷ 154 = 2.9740259740259742
2.9740259740259742 x 100 = 297.4%