“Double, double, toil and trouble. Fire burn and cauldron bubble…” followed by a management report telling you that you have used too much “wing of bat” last week!
Understanding usage variances can often seem like a ‘black art’, especially when your accounts team present you with a vast spreadsheet with hundreds of seemingly meaningless numbers. In all likelihood, most of this is simply ‘noise’ that gets in the way of identifying opportunity. Even if all variances have potential for improvement, they can’t all be your top priority.