Did I calculate the LP withdrawal rate of 1.3 correctly?

Marketplace Price Checks
1

I am willing to buy 1KK LP CONCORD at the rate of 1.3.

I need 27 CONCORD implants.
Each CONCORD implant costs 37,500 LP + 37,500,000 isk

So the salesman will pay CONCORD:
Salesman will spend LP (payment to CONCORD) 1,012,500 (37500x27)
Salesman spend isk (payment to CONCORD) 1,012,500,000 (37,500,000x27)

I will pay Salesman a contractual payment of 1,316,250,000 (1,012,500,000x1.3)