308.9% is the change from 146 to 597
Calculation steps:
[( 597 - 146 ) ÷ 146] x 100 = 308.9%
Formula
Percentage change = [(597 - 146) / 146] x 100
Subtract the new number by the original number
597 - 146 = 451
451 ÷ 146 = 3.089041095890411
3.089041095890411 x 100 = 308.9%