Compute and display the Consistency Ratio of the pairwise comparison matrix.

While the user fills the pairwise comparison matrix, compute and display its Consistency Ratio (CR, Saaty, 1987; Drobne and Lisec, 2009) in real time. Include some guidance text to help interpreting the CR. Ideally, identify in the matrix which particular values are most responsible for the eventual inconsistencies of the matrix.