77.5% is the change from 200 to 355
Calculation steps:
[( 355 - 200 ) ÷ 200] x 100 = 77.5%
Formula
Percentage change = [(355 - 200) / 200] x 100
Subtract the new number by the original number
355 - 200 = 155
155 ÷ 200 = 0.775
0.775 x 100 = 77.5%
Example