-19.4% is the change from 603 to 486
Calculation steps:
[( 486 - 603 ) ÷ 603] x 100 = -19.4%
Formula
Percentage change = [(486 - 603) / 603] x 100
Subtract the new number by the original number
486 - 603 = -117
-117 ÷ 603 = -0.19402985074626866
-0.19402985074626866 x 100 = -19.4%