-18.49% is the change from 611 to 498
Calculation steps:
[( 498 - 611 ) ÷ 611] x 100 = -18.49%
Formula
Percentage change = [(498 - 611) / 611] x 100
Subtract the new number by the original number
498 - 611 = -113
-113 ÷ 611 = -0.18494271685761046
-0.18494271685761046 x 100 = -18.49%