Does a percentage require a singular or plural verb, for example, do we say ten percent "go" or "goes"?
It depends on the item/items to which the percentage refers. When discussing something numerable, such as "10% of commenters," the plural would be appropriate. If something innumerable, such as "10% of the solution," then you would use the singular.
It depends on if the percentage is made up of units (e.g. 10% of people) or is part of a whole (e.g. 10% of the cake).
If it's made up of units, then use the plural:
Of the top 100 earners, 10% own a yacht.
If it's part of a whole, use singular
I made the pie, so 10% is mine.
In the case of a percentage of units, of them is being erased. In the case of a whole of it is being erased.