What is the best options to keep money, which variable float or double?

Question

About money variable

Answer 1

Double is better, but I would consider decimal type. If you're working with real money, you'd want to avoid any chance it gets rounded off at wrong point.

Answer 2

Just I want it can be minus as well like - 1000TRL I try to solve algorithm my project about maintenance our homes. Thank you very much BlazingMagpie for your advice.

Answer 3

What about money data type? It is takes point? Or can be - minus?