What counts as business management experience under the HSP-c points system?

I’m planning to go for the business manager visa. I’m looking at the points calculation for PR fast track for business management. In the section where it asks for years of business management experience, what counts?

I’ve had LLCs and Sole Proprietorships in the US both during my Bachelor’s, summer/winter breaks, and during my Master’s and after graduating. The work under these business involved 1/4-1/2 actual business management tasks and the rest were not related to management. I’ve also worked as a contractor.

Do I partially count the work I’ve done depending on part-time vs full-time? Do I partially count for the actual management work done?

I’ve also heard that immigration lawyers consider work done during bachelors to be part time but during master’s as full time as it’s expected to work during a masters degree in Japan but not a bachelor’s degree.