Approve and disapprove are generally a collection of different possible response (for example strongly approve, approve, slightly approve) which all can be rounded. When you round the result of an addition of rounded numbers, the result can be slightly off, without changing the significance of the result.
It’s called rounding, and it’s quite common.
What rounding algorithm was used? I have a hard time coming up with values or methods to be more than a single unit off.
A wrong one clearly haha
Approve and disapprove are generally a collection of different possible response (for example strongly approve, approve, slightly approve) which all can be rounded. When you round the result of an addition of rounded numbers, the result can be slightly off, without changing the significance of the result.