153.5% is the change from 200 to 507
Calculation steps:
[( 507 - 200 ) ÷ 200] x 100 = 153.5%
Formula
Percentage change = [(507 - 200) / 200] x 100
Subtract the new number by the original number
507 - 200 = 307
307 ÷ 200 = 1.535
1.535 x 100 = 153.5%
Example