9.95% is the change from 392 to 431
Calculation steps:
[( 431 - 392 ) ÷ 392] x 100 = 9.95%
Formula
Percentage change = [(431 - 392) / 392] x 100
Subtract the new number by the original number
431 - 392 = 39
39 ÷ 392 = 0.09948979591836735
0.09948979591836735 x 100 = 9.95%