43.23% is the change from 384 to 550
Calculation steps:
[( 550 - 384 ) ÷ 384] x 100 = 43.23%
Formula
Percentage change = [(550 - 384) / 384] x 100
Subtract the new number by the original number
550 - 384 = 166
166 ÷ 384 = 0.4322916666666667
0.4322916666666667 x 100 = 43.23%