There are many ETFs, Mutual Funds and Unit Trusts in the market. Some ETFs advertise a low Expense Ratio and Total Expense Ratio.
There are many examples:
IVV, VOO and SPY for S&P 500
VNQ, RWR and SCHH for REITs
I would like to find a calculation, empirical evidence, real data that shows that $10k invested on a date (suppose January 2, 2010) would have been so many dollars in one ETF vs another or any other date, to know the net benefit to the investor.