67.09% is the change from 550 to 919
Calculation steps:
[( 919 - 550 ) ÷ 550] x 100 = 67.09%
Formula
Percentage change = [(919 - 550) / 550] x 100
Subtract the new number by the original number
919 - 550 = 369
369 ÷ 550 = 0.6709090909090909
0.6709090909090909 x 100 = 67.09%