Indiana Pacers biggest year-to-year improvement/decline

Based on regular season win percentage:

                            Change in 
                              win %
Improvement: 1997 -> 1998     0.231   (0.476 -> 0.707)
Decline:     2014 -> 2015    -0.220   (0.683 -> 0.463)
Last Year:   2022 -> 2023     0.122   (0.305 -> 0.427)