Truncate (not round) decimal places in SQL Server

I’m trying to determine the best way to truncate or drop extra decimal places in SQL without rounding. For example:

declare @value decimal(18,2)

set @value = 123.456

This will automatically round @value to be 123.46, which is good in most cases. However, for this project, I don’t need that. Is there a simple way to truncate the decimals I don’t need? I know I can use the left() function and convert back to a decimal. Are there any other ways?

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