-21.6% is the change from 611 to 479
Calculation steps:
[( 479 - 611 ) ÷ 611] x 100 = -21.6%
Formula
Percentage change = [(479 - 611) / 611] x 100
Subtract the new number by the original number
479 - 611 = -132
-132 ÷ 611 = -0.2160392798690671
-0.2160392798690671 x 100 = -21.6%