17.81% is the change from 438 to 516
Calculation steps:
[( 516 - 438 ) ÷ 438] x 100 = 17.81%
Formula
Percentage change = [(516 - 438) / 438] x 100
Subtract the new number by the original number
516 - 438 = 78
78 ÷ 438 = 0.1780821917808219
0.1780821917808219 x 100 = 17.81%