16.62% is the change from 331 to 386
Calculation steps:
[( 386 - 331 ) ÷ 331] x 100 = 16.62%
Formula
Percentage change = [(386 - 331) / 331] x 100
Subtract the new number by the original number
386 - 331 = 55
55 ÷ 331 = 0.1661631419939577
0.1661631419939577 x 100 = 16.62%