29.27% is the change from 550 to 711
Calculation steps:
[( 711 - 550 ) ÷ 550] x 100 = 29.27%
Formula
Percentage change = [(711 - 550) / 550] x 100
Subtract the new number by the original number
711 - 550 = 161
161 ÷ 550 = 0.2927272727272727
0.2927272727272727 x 100 = 29.27%