What is every Independent I-A team's record against the over/under line as an underdog since the 2015 season?

Definitions
Team Over Record Over % Under % Total +/-
U Mass 47-30-0 61.0% 39.0% +5.4
N Mex State 36-36-1 50.0% 50.0% +1.6
Notre Dame 10-12-0 45.5% 54.6% -2.4
Connecticut 34-42-2 44.7% 55.3% -1.2
BYU 18-25-0 41.9% 58.1% -1.5
Army 17-33-0 34.0% 66.0% -1.4
Liberty 10-20-0 33.3% 66.7% -5.6