Measure the percentage increase from a gold price low to a later high. The tool shows both the absolute move and the compounded growth multiple between the two levels.
The percentage gain is measured from the low because that is the starting base of the move.
The same absolute dollar move can represent very different percentage gains depending on the starting price. That is why a low-to-high calculation should always state the base value used.
A market-price gain does not automatically equal an investor's realized return. Purchase premium, transaction costs, taxes, selling spread and the investor's actual entry price can change the economic result.
No finite percentage gain can be calculated from a zero starting value.
For a low-to-high upward move, it is the standard percentage increase measured from the low.
Yes, as long as both inputs use the same unit.