-8.51% is the change from 611 to 559
Calculation steps:
[( 559 - 611 ) ÷ 611] x 100 = -8.51%
Formula
Percentage change = [(559 - 611) / 611] x 100
Subtract the new number by the original number
559 - 611 = -52
-52 ÷ 611 = -0.0851063829787234
-0.0851063829787234 x 100 = -8.51%