How to calculate taxable business income in case of a person adopting the presumptive taxation scheme of section 44AD?

How to calculate taxable business income in case of a person adopting the presumptive taxation scheme of section 44AD?

In case of a person adopting the PTS, the taxable business income shallbe 8% or more of the turnover or gross receipts of the eligible business for theyear. This rate shall be 6% for that portion of the turnover which is receivedthrough banking channels or other than cash.