Selective number changing
editOne, two, change a few. Three, four make it more. A common sign of vandalism are vandals selectively changing numbers (usually the first digits) in order to increase the magnitude of what the thing is.
Switcheroo
editVandals will sometimes switch the placements of an entity with another. Most often times it's rivalry related.
Replacement
editVandals may replace an entry with another entry with the same exact value