I often need to work out how much VAT is included on a price so made a PHP extension for that years ago. I’ve re-written the code in Javascript for this snippet.
The code will strip £ and comma from a price if included before calculating the VAT (20% in my case).
The resulting figure is fixed to 2 decimal places and put into the clipboard.
# popclip
name: VAT
description: Calculate 20% VAT included on an amount
javascript:
var clip = popclip.input.text.replace(/[£,]/g, '');
var vatcalc = clip - (clip / 1.2);
let vat = vatcalc.toFixed(2);
popclip.copyText(vat);
Feel free to change for your currency/seperator.