3 $719,813 $719,813 $719,813 $719,813 $719,813 $719,813 $719,813 December business $719,813 $719,813 $719,813 $719,813 $719,813 $719,813 $719,813 $719,813 $719,813 $719,813 $719,813 $719,813 January business $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 February business $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 March business $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 $828,094 April business $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 May business $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 June business $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 $935,953 July business $1,044,023 $1,044,023 $1,044,023 $1,044,023 $1,044,023 $1,044,023 $1,044,023 $1,044,023 $1,044,023 August business $1,044,023 $1,044,023 $1,044,023 $1,044,023 $1,044,023 $1,044,023 $1,044,023 $1,044,023 September business $1,044,023 $1,044,023 $1,044,023 $1,044,023 $1,044,023 $1,044,023 $1,044,023 October business $1,151,988 $1,151,988 $1,151,988 $1,151,988 $1,151,988 $1,151,988 November business $1,151,988 $1,151,988 $1,151,988 $1,151,988 $1,151,988 December business $1,151,988 $1,151,988 $1,151,988 $1,151,988 January business $1,260,006 $1,260,006 $1,260,006 February business $1,260,006 $1,260,006 March business $1,260,006 Straight salespeople with management Note: No revenue erosion is modeled in these calculations. APPENDIX C Generalized "Rule of 78" This appendix contains a short generalization of the Rule of 78, based on the paper by D. Minoli, "Inductive Formulae For General Sum Operations", Mathematics of Computation, Vol. 34, No. 150, April 1980, pp. 543-545. These results have various applications. 1. Introduction. Inductive formulae for sums of powers of consecutive integers are well known; the left si