3000 x 1st class barcoded, 26% discount, 10,000 x 2nd class barcoded, 5% discount: £12,641.00
1st class barcoded, 26% discount 3000 £1.80 £5,400.00 74.00% £3,996.00 2nd class barcoded, 5% discount 10000 £0.91 £9,100.00 95.00% £8,645.00 £14,500.00 ...