Barcelona have a game against Elche in Camp Nou this time. They are trying to find a way out of their bad form lately. They couldn't defeat Osasuna too and they need a win to improve their morale now. Elche are a team of poorer quality than Osasuna. This is a big chance for Barcelona to finally reach a victory. They shouldn't just underestimate their opponent and should win this.
Although here Barcelona have more chances of winning than Elche, but I'm not sure of such a calculation for Barcelona's sign. Maybe because Barcelona from the start against Osasuna and against Boca Juniors only before the game got a percentage chance of winning. But in the end also lost. So this rule does not apply if Barcelona really loses in a row.