I.87-11-033 et al. COM/cacd Page E-33 The Siskiyou Telephone Company Adopted Rates and Charges Incremental Revenue Needed from Se $1,128,210 Incremental Revenue Earned From Se $33,144 % Increase to Service Connection C 86.62% Factor Increase: 1.86620 EST.'91 PRESENT PRESENT ADOPTED ADOPTED CHARGE ANNUAL PERCENT SERVICE CHARGES UNITS CHARGE TOTAL CHARGE TOTAL DIFF DIFF DIFF (a) (b) (c) (d) (e) (f) (g) (h) INSTALLATION CHARGE 916 $12.00 $10,992 $22.50 $20,610 $10.50 $9,618 87.50% MOVE AND CHANGE 324 10.00 3,240 18.75 6,075 8.75 2,835 87.50% CENTRAL OFFICE WORK 1,044 16.00 16,704 29.75 31,059 13.75 14,355 85.94% PREMISE VISIT 192 38.00 7,296 71.00 13,632 33.00 6,336 86.84% 2,476 $38,232 $71,376 $33,144 Incremental Revenue Requirement to be recovered from CHCF: $1,095,066 I.87-11-033 et al. COM/cacd Page E-32 The Siskiyou Telephone Company Adopted Rates and Charges Incremental Revenue Requ $1,463,035 Incremental Revenue Earn $334,825 % Increase to Basic Rate 100.00% Factor Increase: 2.00000 % Increase to Basic Rate 45.43% % Increase to Basic Rate 36.05% % Increase to Basic Rate 27.80% % Increase to Basic Rate 12.47% EST. '91 MO. AVG PRESENT PRESENT ADOPTED ADOPTED CHARGE ANNUAL PERCENT LOCAL EXCHANGE UNITS MO RATE YR TOTAL MO RATE YR TOTAL DIFF DIFF DIFF (a) (b) (c) (d) (e) (f) (g) (h) RESIDENCE 1-PARTY--flat 1,980 $7.60 $180,576 $15.20 $361,152 $7.60 $180,576 100.00% SUB URBAN--flat 384 7.20 33,178 14.40 66,355 7.20 33,178 100.00% 1-PARTY--KSRA flat 286 11.60 39,811 16.85 57,829 5.25 18,018 45.26% 1-PARTY--SSRA flat 122 12.40 18,154 16.85 24,668 4.45 6,515 35.89% 1-PARTY--CSRA flat 71 13.20 11,246 16.85 14,356 3.65 3,110 27.65% 1-PARTY--FSRA flat 62 15.00 11,160 16.85 12,536 1.85 1,376 12.33% Subtotal 2,905 $294,125 $536,897 $242,773 BUSINESS 1-PARTY--flat 562 $9.75 65,754 19.50 131,508 9.75 65,754 100.00% SUB URBAN--flat 15 9.25 1,665 18.50 3,330 9.25 1,665 100.00% 1-PARTY--KSRA flat 50 13.75 8,250 20.00 12,000 6.25 3,750 45.45% 1-PARTY--CSRA flat 21 14.55 3,667 18.60 4,687 4.05 1,021 27.84% 1-PARTY--SSRA flat 14 15.35 2,579 20.90 3,511 5.55 932 36.16% 1-PARTY--FSRA flat 30 25.00 9,000 28.10 10,116 3.10 1,116 12.40% KEY--flat 90 10.15 10,962 20.30 21,924 10.15 10,962 100.00% SEMI-PUBLIC COIN 1 17.90 215 35.80 430 17.90 215 100.00% PBX--flat 37 14.95 6,638 29.90 13,276 14.95 6,638 100.00% Subtotal 820 108,729 200,782 92,053 TOTAL BUS.+RES. 3725 $402,854 $737,679 $334,825 83.11% Incr. Rev. Req. To Be Recovered From Service Connection Charges: $1,128,210