Arizona Cardinals : biggest year-to-year improvement/decline

Based on regular season win percentage:

                            Change in 
                              win %
Improvement: 1973 -> 1974     0.393   (0.321 -> 0.714)
Decline:     2021 -> 2022    -0.412   (0.647 -> 0.235)
Last Year:   2024 -> 2025    -0.295   (0.471 -> 0.176)