20.09% is the change from 438 to 526
Calculation steps:
[( 526 - 438 ) ÷ 438] x 100 = 20.09%
Formula
Percentage change = [(526 - 438) / 438] x 100
Subtract the new number by the original number
526 - 438 = 88
88 ÷ 438 = 0.2009132420091324
0.2009132420091324 x 100 = 20.09%