Never use float for money
The web is riddled with articles on this very topic, yet it bares repeating: never use float for money. I repeat: never never never never never use a floating point data type to represent monetary values or do financial math. Why? Single and Double precision floating point numbers are not accurate. Ironically, it's by design. They are optimized for performance where absolute accuracy is not a concern. Microsoft talks about it briefly here: https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/builtin-types/floating-point-numeric-types [...]there's no double or float instance that exactly represents 0.1. Because of this difference in numeric types, unexpected rounding errors can occur in arithmetic calculations when you use double or float for decimal data. Baeldung has an excellent writeup on the science behind why floats behave the way they do: https://www.baeldung.com/cs/floating-point-numbers-inaccuracy So what should we use for money and financial calculations