How to calculate the 80 million project cost consulting service in Hunan?

The project cost of 80 million yuan is calculated as follows:

(1 ten thousand× 4.8 ‰+four million× 4.1‰+five million× 3.8 ‰+forty million× 3.4 ‰+thirty million× 2.9 ‰) × 80% = 21.056 million yuan.