Among the Śvetāmbara Jains, the largest sub‑sect by far is:

• Śvetāmbara Mūrtipūjak (also called Derāvāsī)

- This group includes major gacchas like Tapā Gaccha, Khartara Gaccha, etc. - They are traditionally described as the majority of all Śvetāmbaras.

• Sthānakvāsī and Terāpanth (Śvetāmbara) are smaller non‑idol‑worshipping sub‑sects compared to Mūrtipūjaks.

However:

• Exact percentage figures (like 60%, 30%, 10%) are not reliably available in authentic Jain sources.
• Modern surveys also do not give a precise, agreed‑upon percentage split between Mūrtipūjak, Sthānakvāsī and Terāpanth within Śvetāmbara Jains.

So, based on traditional and scholarly understanding:

• Highest following among Śvetāmbara sects:

→ Śvetāmbara Mūrtipūjak (idol‑worshipping)

• Percentage:

→ Can only be stated roughly as “clear majority”, not as an exact number.

For a simple overview of Śvetāmbara sub‑sects, you can read more here