Narrated by Anas ibn Malik, the Prophet (sallallaahu ’alayhi wa sallam) said, “Whoever slaughtered the sacrifice before the prayer, he just slaughtered it for himself, and whoever slaughtered it after the prayer, he slaughtered it at the right time and followed the tradition of the Muslims.”
You have 3 options for slaughtering as per below:
1 x sheep = £90
1 x share of a cow = £45
1 x whole cow = £280