In Varshi Tap (Varshitap) there is no single fixed, same-every-time number of upvās and ekāshan across all years and all traditions. It depends on:

• Exact start date (tithi)
• Full lunar‑year length (about 13 months + 13 days)
• Tithis like Ātham, Chaudash, Samvatsari, etc., where beshan/ekāshan is not done, so that day also becomes upvās or chhatth
• The maryādā (rules) of your particular guru / gacch / sangh

General idea (Śvetāmbara practice, Tapāgacch etc.)

• Varshitap is kept for about 400 days.
• Rule is basically: alternate‑day upvās and eating day.
• On eating days one may do ekāshan or beśan, as per niyam.

If it was a perfect “one day upvās / one day ekāshan” without any special tithis, it would be roughly:

• ~200 days upvās
• ~200 days ekāshan / beśan

But in real practice:

• Many eating days fall on tithis where you cannot eat, so those also become upvās or chhatth.
• Therefore most Varshitap tapasvīs end up doing more than 220 upvās in total, and the remaining days are ekāshan / beśan.

So you can remember simply:

• Upvās: a little more than half the days (usually 220+)
• Ekāshan / beśan: the rest of the days (around 170–180, approximately)

Exact counts differ by:

• Year’s calendar
• Whether you keep only ekāshan on eating days or sometimes beśan
• Local maryādā (some add special extra fasts)

What you should do

For your Varshi Tap:

• Take pachchakkhān from your own guru / sādhu / learned elder.
• Use the Varshitap calendar they give for that year.
• Follow their count of how many upvās, how many ekāshan/beshan.

You can read a simple explanation of Varshitap here