47.83% is the change from 391 to 578
Calculation steps:
[( 578 - 391 ) ÷ 391] x 100 = 47.83%
Formula
Percentage change = [(578 - 391) / 391] x 100
Subtract the new number by the original number
578 - 391 = 187
187 ÷ 391 = 0.4782608695652174
0.4782608695652174 x 100 = 47.83%