Let the workplace population be a finite set S = {1, 2, ..., N} partitioned into subsets: SBM, SFT, and SPT.
T ≡ Total gross tip pool (£)
N ≡ Total eligible staff population
W ≡ Aggregate sum of weighted role points
wi ≡ Discrete coefficient (BM: 3, FT: 2, PT: 1)
Pi ≡ Net dividend for worker i