6.375 is greater than 6.333
1,000. 4,200 / 21 = 200. 5 * 200 = 1,000
Sales tax = 6% or 6/100.
assuming tax is added onto the item:
total cost function f(x) = price + tax
however, assuming the cost price = sales price - tax, then:
f(x) = sales price - tax
This is not really a business or accounting forum, its a maths forum, so you need to be clearer about business or accounting terms such as total cost, selling price, selling cost.
Can you give more information?
EDF and GHL are similar. The scale factor is 1/2.
