-6.33% is the change from 537 to 503
Calculation steps:
[( 503 - 537 ) ÷ 537] x 100 = -6.33%
Formula
Percentage change = [(503 - 537) / 537] x 100
Subtract the new number by the original number
503 - 537 = -34
-34 ÷ 537 = -0.0633147113594041
-0.0633147113594041 x 100 = -6.33%