57.82% is the change from 550 to 868
Calculation steps:
[( 868 - 550 ) ÷ 550] x 100 = 57.82%
Formula
Percentage change = [(868 - 550) / 550] x 100
Subtract the new number by the original number
868 - 550 = 318
318 ÷ 550 = 0.5781818181818181
0.5781818181818181 x 100 = 57.82%