28% is the change from 550 to 704
Calculation steps:
[( 704 - 550 ) ÷ 550] x 100 = 28%
Formula
Percentage change = [(704 - 550) / 550] x 100
Subtract the new number by the original number
704 - 550 = 154
154 ÷ 550 = 0.28
0.28 x 100 = 28%
Example