Excel ROUND Function
ROUND changes the actual value. Formatting only changes how a number looks, which can make totals seem not to add up.
Syntax
=ROUND(number, num_digits)
2rounds to 2 decimal places: 3.14159 → 3.140rounds to a whole number-2rounds to the nearest hundred: 1,849 → 1,800
Always up or always down
=ROUNDUP(A2,0) =ROUNDDOWN(A2,0)
Round to a multiple
=MROUND(A2,5)