I found a way to search for it using group search.
32-bit game: 0~~0D;0D;(UnitType)D;(money whole number)F::13
64-bit game: 0~~0Q;0Q;(UnitType)D;(money whole number)F::21
The K in 217.58K is the UnityType which has a value of 11. The whole number will be 217.
So for an example, if you have 217.58K gold and your game is 64-bit, you have to first pause/freeze your game (important) and search 0~~0Q;0Q;11D;217F::21 and then refine search 11D;217F::5
After that, edit all dwords to the desired UnitType number and you can also modify the float value to 0 - 999 if you want to.
If nothing comes up, you can try 0~~0Q;0Q;11D;216~218F::21 and then you refine search 11D;216~218F::5 and don't forget to pause/freeze your game.
The memory ranges I used for searching was Anonymous and Other.
I made a video of me modifying the gold so you can see.