25.64% is the change from 550 to 691
Calculation steps:
[( 691 - 550 ) ÷ 550] x 100 = 25.64%
Formula
Percentage change = [(691 - 550) / 550] x 100
Subtract the new number by the original number
691 - 550 = 141
141 ÷ 550 = 0.25636363636363635
0.25636363636363635 x 100 = 25.64%