I was working with [top 5 bank in the US] and hit the same issue with regards to their interest rates between products.
Some represented interest rates as a simple number "5%" others as a decimal "0.05" and others as basis points (500). It caused some HUGE problems internally as less clueful loan officers were plugging 0.05% interest rates into formulas for customers. The naming was just as bad. We had columns and fields called intRate, int_rate, interest_rate, and of course iRate.
I asked people if they were irate over the problem. No one laughed. :D
Some represented interest rates as a simple number "5%" others as a decimal "0.05" and others as basis points (500). It caused some HUGE problems internally as less clueful loan officers were plugging 0.05% interest rates into formulas for customers. The naming was just as bad. We had columns and fields called intRate, int_rate, interest_rate, and of course iRate.
I asked people if they were irate over the problem. No one laughed. :D