38.64% is the change from 383 to 531
Calculation steps:
[( 531 - 383 ) ÷ 383] x 100 = 38.64%
Formula
Percentage change = [(531 - 383) / 383] x 100
Subtract the new number by the original number
531 - 383 = 148
148 ÷ 383 = 0.38642297650130547
0.38642297650130547 x 100 = 38.64%