143.75% is the change from 208 to 507
Calculation steps:
[( 507 - 208 ) ÷ 208] x 100 = 143.75%
Formula
Percentage change = [(507 - 208) / 208] x 100
Subtract the new number by the original number
507 - 208 = 299
299 ÷ 208 = 1.4375
1.4375 x 100 = 143.75%