Help please - I am a jeweller trying to work out gross profit from
COLUMN A RING PRICE TO CUSTOMER , COLUMN B VAT 20%, COLUMN C. ASSAY FEE 17.50, COLUMN D GOLD PRICE,
COLUMN E. TOTAL COST COLUMN F. GROSS PROFIT
BASICALLY VAT WORKED OUT AT 20% AND THEN COLUMNS B, C, D, E DEDUCTED FROM...