Explanation
TheROUNDDOWN functionrounds a numberdownto a given number of places.
The number of places is controlled by the number of digits provided in the second argument (num_digits).
At each step, numbers that would normally be rounded up are rounded down.
you might use theFLOOR functionto round a number down to a given multiple.
Unlike standard rounding, where only numbers less than 5 are rounded down, ROUNDDOWN roundsall numbers down….
