1782.00 this is today price of an ounce of gold.
22.74 this was the price of an ounce of gold in 1873
That ounce of gold ( whether 2021 or 1873) will purchase the same amount.
For instance ... in 1873 you could buy a Colt SAA and have a small bit left over
In 2021 you can buy the same brand...