The poll is based on their latest percentage results too. Tories - 43%, Labour 32%. The polls show the gap is narrowing, and just because this poll was close last time, it doesn’t guarantee it will be this time.
Another week of the gap closing would see a lot of seats change hands, and a couple of weeks could yet change everything. The most important thing is that we’re moving in the right direction and people shouldn’t be disheartened.