结汇成本计算器 / FX conversion cost calculator

结汇成本计算器: the inputs, as core’s schema takes them. Figures are decimal strings.

Each figure core returns, by id, as a tagged value. The ids listed are the ones the tool’s manifest names; a tool may return more (a figure that only its worked steps use), in the same form.

What the API changed in the inputs before core saw them, so the caller sees what was understood: a JSON number as text, a thousands comma, full-width digits, a currency or unit name or a date written another way. Absent when nothing was changed.

Addresses that go with the answer. page: the tool’s page on the site with the same inputs in its address, in the language asked (Chinese for a language the site does not publish yet), so a person can open the page that shows these numbers.

Where the figures in an answer come from. In every answer, errors included.