540000/1.17 * 0.17 = 78461.54 This amount is the value-added tax you have to pay this month.

Then how do I calculate how many tickets are certified?

You only need to calculate your input invoice tax. The above amount is enough, but it doesn't matter if you have more, because it can be deducted until next month. You must remember that your input invoice should not be certified more than 180 days, which will be overdue.

I mean, how much is the total amount of the invoice received by the certification?

If the tax rate of all the special VAT tickets you receive is 17%, then the total amount of certified VAT tickets is the same as the 540,000 issued, which can only be greater than this amount, but not less than it. If it is less than that, you will have to pay VAT.