2,344-82,4

I’m not sure which notation you’re using. Could you confirm?

• If comma is a decimal separator (European style): 2,344 - 82,4 = 2.344 - 82.400 = -80.056
• If comma is a thousands separator for the first number (2,344 = 2344) and the second is 82.4: 2344 - 82.4 = 2261.6

Let me know which interpretation you need and I’ll show the full steps.