Standardized Notation
Any time that a cost needs to be payed with Funding, the amount will be denoted by a number followed by the letter F with no space between.
Most funding costs will be relatively low, such as 0F, 1F, 2F, 3F.
Standard funding costs can also reach higher than that, such as 4F, 5F, 6F.
These are all when considering the cost to deploy a single card.
Fixed Funding Cost
Some card types have a fixed Funding cost to bring into play:
Locations & free contest Challenges cost 0F
Buffs, Debuffs, Plot Twists, & Skills cost 1F
Items & Tactics cost 2F
Groups cost 3F
Agendas cost 4F
Rarity-based Funding Cost
equal to 2F plus half that card’s rarity level (rounded down).