-2.79% is the change from 538 to 523
Calculation steps:
[( 523 - 538 ) ÷ 538] x 100 = -2.79%
Formula
Percentage change = [(523 - 538) / 538] x 100
Subtract the new number by the original number
523 - 538 = -15
-15 ÷ 538 = -0.027881040892193308
-0.027881040892193308 x 100 = -2.79%