Take monthly data of any 1 stocks from september 2018 to september 2019.

calculate their rolling 12 month returns by taking an average of the previous 12 monthly returns and multiplying that average by 12.

Calculate these rolling average annualised returns for 24 months from November 2020 to October 2022, inclusively Show this in Excel.

please share the complete excel calculation of procedure

this is related to ETFs