24.91% is the change from 550 to 687
Calculation steps:
[( 687 - 550 ) ÷ 550] x 100 = 24.91%
Formula
Percentage change = [(687 - 550) / 550] x 100
Subtract the new number by the original number
687 - 550 = 137
137 ÷ 550 = 0.24909090909090909
0.24909090909090909 x 100 = 24.91%