itability by about 10 percent. See Table 10-13. Figures 10-13 through 10-18 represent the information in Table 10-13 graphically. Table 10-13 Financial Item Results of Run 3 Two 10-Mbps customers in a building on the backbone ring Typical total MRC/building (considers one end) $5,000 ($5,000 MRC per customer, but only $2,500 is generated at the building in question) Allocated ring cost per building/MRC (32 buildings) Allocated spur cost per building/MRC $1,500 Allocated CO equipment cost per building/MRC Allocated CPE cost per building/MRC Allocated riser costs per building/MRC Allocated network management costs per building/MRC Allocated SGA (= 18% of revenue) Allocated operations costs (= 17% of revenue) Total costs $5,715 Net profit (loss) ($715) Margin % Four 10-Mbps customers in a building on the backbone ring Typical total MRC/building (considers one end) $10,000 ($5,000 MRC per customer, but only $2,500 is generated at the building in question) Allocated ring cost per building/MRC (32 buildings) Chapter 10 Table 10-13 Financial Item Results of Run 3 Allocated spur cost per building/MRC $1,500 Allocated CO equipment cost per building/MRC Allocated CPE cost per building/MRC Allocated riser costs per building/MRC $1,600 Allocated network management costs per building/MRC Allocated SGA (= 18% of revenue) $1,800 Allocated operations costs (= 17% of revenue) $1,700 Total costs $8,412 Net profit $1,588 Margin % Two 100-Mbps customers in a building on the backbone ring Typical total MRC/building (considers one end) $7,000 ($7,000 MRC per customer, but only $3,500 is generated at the building in question) Allocated ring cost per building/MRC (24 buildings) Allocated spur cost per building/MRC $1,500 Allocated CO equipment cost per building/MRC Allocated CPE cost per building/MRC Allocated riser costs per building/MRC Allocated network management costs per building/MRC Allocated SGA ( = 18% of revenue) $1,260 Allocated operations costs (= 17% of revenue) $1,190 Total costs $6,467 Net profit Margin % Four 100-Mbps cu