-11.95% is the change from 611 to 538
Calculation steps:
[( 538 - 611 ) ÷ 611] x 100 = -11.95%
Formula
Percentage change = [(538 - 611) / 611] x 100
Subtract the new number by the original number
538 - 611 = -73
-73 ÷ 611 = -0.11947626841243862
-0.11947626841243862 x 100 = -11.95%