177.5% is the change from 200 to 555
Calculation steps:
[( 555 - 200 ) ÷ 200] x 100 = 177.5%
Formula
Percentage change = [(555 - 200) / 200] x 100
Subtract the new number by the original number
555 - 200 = 355
355 ÷ 200 = 1.775
1.775 x 100 = 177.5%
Example