Round number to nearest multiple of x

Hey guys, I'm trying to make a ui that clips to the nearest multiple of x; I am using a grid system where each cell is 75 and spacing is 10. So my thought was say the ui length was 100, and i wanted to clip to the nearest multiple, that would be 85. how would i do that? I'm completely stuck any help would be appreciated thanks.

 

Will they always be integer values, or do you need to round floats?

This is a simple approach for int. Rounds to the nearest multiple, rounding down.

Code (CSharp):

1. public void RoundToMultiple(int value, int roundTo) {
2.     return (value / roundTo) * roundTo;
3. }

 

Didnt even think of that. Quite simple. thanks.