Formula help

Occasional Visitor

Hi Community Team


Please may I get assistance with formula to calculate previous Premiums based on percentage increases which inform current premium.


Current Premium2018-2019 (10%)2019-2020(8.5%)2020-2021(28.5%)

My question is what was the premium 2018-2019 if there was 10% increase and 2019-2020 if there was 8,5% increase with 2020-2021 with 28,5 %




1 Reply


See screenshot (1=result, 2=formulas)