Multiplying a double value by 100.0 introduces rounding errors?

Question

This is what I am doing, which works 99.999% of the time:

((int)(customerBatch.Amount * 100.0)).ToString()

The Amount value is a double. I

Answer 1

You should really use decimal for money calculations.

((int)(580.55m * 100.0m)).ToString().Dump();

Answer 2

Decimal has more precision than a double. Give decimal a try.

http://msdn.microsoft.com/en-us/library/364x0z75%28VS.80%29.aspx