-1.67% is the change from 538 to 529
Calculation steps:
[( 529 - 538 ) ÷ 538] x 100 = -1.67%
Formula
Percentage change = [(529 - 538) / 538] x 100
Subtract the new number by the original number
529 - 538 = -9
-9 ÷ 538 = -0.016728624535315983
-0.016728624535315983 x 100 = -1.67%