Cost of living in Sari (Iran) is 65% cheaper than in Zurich (Switzerland)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 888 prices entered by 154 different people.
For example, to keep the same standard of living that would require CHF 11,000 in Zurich you would need to make just about CHF 3,871 (﷼ 168,545,016) in Sari.