275% is the change from 200 to 750
Calculation steps:
[( 750 - 200 ) ÷ 200] x 100 = 275%
Formula
Percentage change = [(750 - 200) / 200] x 100
Subtract the new number by the original number
750 - 200 = 550
550 ÷ 200 = 2.75
2.75 x 100 = 275%
Example