11 lines
539 B
Lua
11 lines
539 B
Lua
C = setmetatable(require("bc"), {__call=function(t,...) return t.new(...) end})
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C.digits(6) -- enough for .nn * .nnnn ==> .nnnnnn, follow with trunc(2) to trim trailing zeroes
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subtot = (C"4000000000000000" * C"5.50" + C"2" * C"2.86"):trunc(2) -- cosmetic trunc
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tax = (subtot * C"0.0765" + C"0.005"):trunc(2) -- rounding trunc
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total = (subtot + tax):trunc(2) -- cosmetic trunc
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print(("Before tax: %20s"):format(subtot:tostring()))
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print(("Tax : %20s"):format(tax:tostring()))
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print(("With tax : %20s"):format(total:tostring()))
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