-3.8% is the change from 526 to 506
Calculation steps:
[( 506 - 526 ) ÷ 526] x 100 = -3.8%
Formula
Percentage change = [(506 - 526) / 526] x 100
Subtract the new number by the original number
506 - 526 = -20
-20 ÷ 526 = -0.03802281368821293
-0.03802281368821293 x 100 = -3.8%