109.5% is the change from 242 to 507
Calculation steps:
[( 507 - 242 ) ÷ 242] x 100 = 109.5%
Formula
Percentage change = [(507 - 242) / 242] x 100
Subtract the new number by the original number
507 - 242 = 265
265 ÷ 242 = 1.0950413223140496
1.0950413223140496 x 100 = 109.5%