Wedding Cakes by Jayne - Beautiful bespoke wedding cakes at affordable prices.
Wedding cake portion guide: 

Cake sizes:
Round:
Square:
 8,6,4
(standard 3 inch deep)
 60
 75
10, 7 inch 
(standard 3 inch deep)
90
120
10,8,6
(standard 3 inch deep)
120
155
10,8,6,4
(standard 3 inch deep)
130
165
12,9,6
(standard 3 inch deep)
150
200
12,10,8,6
(standard 3 inch deep)
200
265
12,10,8,6,4
(standard 3 inch deep)
210
280 
10,8,6,4
(4 inch deep)
160
200
            12,10,8,6,4
            (4 inch deep)
                     230
                     300
 
Cutting cakes    
This is a great idea if you need more cake for your guests, and need to watch your budget.

Round cakes:
8 inch = £40 (for an iced vanilla sponge, approx 35 portions
10 inch = £60 (for an iced vanilla sponge, approx 50 portions
12 inch cake = £75 (for an iced vanilla sponge, approx 60 portions) 

Square cakes:
8 inch cake = £50(for an iced vanilla sponge, approx 50 portions)
10 inch cake = £70 (for an iced vanilla sponge, approx 60 portions) 
12 inch cake = £85 (for an iced vanilla sponge, approx 70 portions)