Service center

Upgrade costs L0 -> L1
Product	Quantity	Market price	Total costs
Coins	2 000 000 000	1	2 000 000 000
Silver	50 000	1 693	84 630 000
Copper	15 000	90 739	1 361 083 500
Batteries	20 000	218 133	4 362 666 000
			7 808 379 500