FX spread in this calculator is spread after pass-through minus hedge and local. With 90000 volume USD, 1.4 spread %, 40 pass %, 120 hedge USD, 80 local USD the result is $796.00 | $756.00.
core = volume × spread% × (1 − pass%). net = core + hedge − local. The formula uses checkout and hedge.
$796.00 | $756.00 is not a Fed or Bank of England published rate. Another set of numbers gives $350.00 | $330.00, and a further set gives $1,670.00 | $1,620.00. Empty scenario fields do not change the result.
Sales tax answers a different question. Take rate does too. Here 90000 volume USD, 1.4 spread %, 40 pass %, 120 hedge USD, 80 local USD leave $796.00 | $756.00.
Type 90000 volume USD, 1.4 spread %, 40 pass %, 120 hedge USD, 80 local USD and click Calculate. Two more ready sets sit under the form: $350.00 | $330.00 and $1,670.00 | $1,620.00.
Other numbers on the same labels move the result. The first example gives $796.00 | $756.00.