-96.6% is the change from 559 to 19
Calculation steps:
[( 19 - 559 ) ÷ 559] x 100 = -96.6%
Formula
Percentage change = [(19 - 559) / 559] x 100
Subtract the new number by the original number
19 - 559 = -540
-540 ÷ 559 = -0.9660107334525939
-0.9660107334525939 x 100 = -96.6%