@mchler73 the lower the better. There are different cut offs for chemo based on age. Here is the site for a DCIS Oncotype https://precisiononcology.exactsciences.com/patients-and-caregivers/understanding-your-diagnosis/breast-cancer/breast-dcis-score

and for invasive cancer:
https://precisiononcology.exactsciences.com/patients-and-caregivers/understanding-your-diagnosis/breast-cancer/breast-recurrence-score
Cutoffs depending on age (for invasive):

Women over the age of 50
A score of 0–25 means you’re unlikely to benefit from having chemotherapy in addition to hormone therapy
A score of 26 or above means you’re likely to benefit from having chemotherapy in addition to hormone therapy
Women aged 50 or younger
A score of 0–15 means you’re unlikely to benefit from having chemotherapy in addition to hormone therapy
A score of 16 or above means your specialist will discuss your test result with you to help decide if you’re likely to benefit from chemotherapy

Here is a really good article:
https://www.cancertodaymag.org/fall-2022/chemo-or-not/