Methodology
Fee drag
Every number on this site traces back to a formula in this section. If you find a mismatch, that is a bug — not an opinion.
The formula
drag£ = 10,000 × (1 − (1 − OCF)⁵)
OCF compounded across the five-year window, expressed in pounds on £10,000.
long-form article body · pending — formulas, worked examples, source tables land here