CC Antya 6.270

dui nimantraṇe lāge kauḍi aṣṭa-paṇa
brāhmaṇa-bhṛtya-ṭhāñi karena eteka grahaṇa
Word for word: 
dui nimantraṇe — these two invitations; lāge — cost; kauḍi aṣṭa-paṇa — 640 kauḍis; brāhmaṇa-bhṛtya-ṭhāñi — from the brāhmaṇa and the servant; karena — does; eteka — so much; grahaṇa — accepting.
Translation: 
The cost for these two occasions was 640 kauḍis. Therefore he would take that much from the servant and the brāhmaṇa.