Tax calculation method revised to adopt Rule 7 rates for SGST, altering prior fixed percentage approach under state notification. The notification substitutes the prior wording with provision stating an amount of tax calculated at the rate specified in rule 7 of the Chhattisgarh Goods and Services Tax Rules, 2017, replacing the earlier fixed percentage phrasing; the change is made under section 10(1) of the Act and takes effect from the notified date.