300% is the change from 146 to 584
Calculation steps:
[( 584 - 146 ) ÷ 146] x 100 = 300%
Formula
Percentage change = [(584 - 146) / 146] x 100
Subtract the new number by the original number
584 - 146 = 438
438 ÷ 146 = 3
3 x 100 = 300%
Example