Minnesota Timberwolves biggest year-to-year improvement/decline

Based on regular season win percentage:

                            Change in 
                              win %
Improvement: 2021 -> 2022     0.242   (0.319 -> 0.561)
Decline:     2014 -> 2015    -0.293   (0.488 -> 0.195)
Last Year:   2025 -> 2026     0.000   (0.598 -> 0.598)