147.5% is the change from 240 to 594
Calculation steps:
[( 594 - 240 ) ÷ 240] x 100 = 147.5%
Formula
Percentage change = [(594 - 240) / 240] x 100
Subtract the new number by the original number
594 - 240 = 354
354 ÷ 240 = 1.475
1.475 x 100 = 147.5%
Example