how to display symbol of currency according to country - google-sheets

Question

I have a sheet below in which I would like to display the symbol of currency according to region selected in column C. If we select America, the symbol of dollar must appear before the cost in B column, like when we select Europe, the symbol of euro must appear before the cost in column B.
https://docs.google.com/spreadsheets/d/1dlfXRcSDy7XhQmRuVa3dEmx6zjHukOlOoRp5V-Em1c0/edit#gid=0
You can use VLOOKUP or CONCATENATE whatever you want, the symbol must appear before the price.
Thanks in advance

Answer 1

I created a onEdit script for you. Try it our for yourself. I added some comment if you want to change the sheetname / column to check. Hope that this fits your needs.
Go to tools -> Script editor
Choose setNumberFormat from the dropdown and run it with the little play button. Give premission.
(maybee repeate 2 with the onEdit from the dropdown.)
Close. And now you should have a working script.
The Script for others
function onEdit(){
const ss = SpreadsheetApp.getActiveSpreadsheet();
//Change sheet name to check
const sheet = "Purchase Sheet";
const activeSheet = ss.getActiveSheet().getName();
const cell = ss.getActiveSheet().getActiveCell();
// 3 = column c. So change this to you needs
if (activeSheet == sheet && cell.getColumn() == 27){
console.log("True");
setNumberFormat();
}
}
function setNumberFormat() {
const ss = SpreadsheetApp.getActiveSpreadsheet();
const cell = ss.getActiveSheet().getActiveCell();
let numberFormat = "";
//With this as example, you can extend to your needs.
switch (cell.getValue()) {
case "AMERICA":
numberFormat = "$#,##0.00";
break;
case "EUROPE":
numberFormat = "€#,##0.00";
break;
}
cell.offset(0, -21).setNumberFormat(numberFormat);
}