How about changing the price of upgrading your DFPs. I don't understand why I have to pay another 100K just to increase my lab by 1. So i suggest lowering the price when just increasing your units, not changing the drug.

The reason you have to pay is so much is because you move your entire operation into a new building which can hold and produce the amount of units you want.

To make it financially viable you should try to increase by as many units as possible at once. So instead of increasing by one unit at a time, increase it by 5 or 6.