156.25% is the change from 240 to 615
Calculation steps:
[( 615 - 240 ) ÷ 240] x 100 = 156.25%
Formula
Percentage change = [(615 - 240) / 240] x 100
Subtract the new number by the original number
615 - 240 = 375
375 ÷ 240 = 1.5625
1.5625 x 100 = 156.25%