A $$888$ bill for council rates has just arrived. Reading through the payment options, you can choose to pay it upfront, or over two types of instalment plans.

Plan A: $$222$ paid quarterly in arrears for $4$ quarters

Plan B: $$74$ paid monthly in advance for $12$ months

A discount rate of $16\%$ p$.$a$.$ applies.

Which is the cheapest option?

Pay upfront

Which is the most expensive option?

Plan B

How much more would you pay if you picked the most expensive option compared to the cheapest option?