Earlier quoted context omitted.
Nothing. The problem is when you obviously picked the rounded percentages that sounded good first and then calculated the number of votes from that.
Not necessarily. If the person announcing was given the number of votes and rounded percentages, then this could explain it. For example, in my country, they always report only turnout as a percentage with a single decimal and the share of each candidate/party with up to 2 decimals, never the number of votes - who cares about the absolute numbers anyway?
They should report the absolute number of votes at each counting station.