43.6% is the change from 383 to 550
Calculation steps:
[( 550 - 383 ) ÷ 383] x 100 = 43.6%
Formula
Percentage change = [(550 - 383) / 383] x 100
Subtract the new number by the original number
550 - 383 = 167
167 ÷ 383 = 0.4360313315926893
0.4360313315926893 x 100 = 43.6%