create financial/price_plus_tax function #1605

	name: build

	'on':
	pull_request:
	workflow_dispatch:
	schedule:
	- cron: '51 2 * * 4'

	jobs:
	fmt:
	name: cargo fmt
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: cargo fmt
	run: cargo fmt --all -- --check

	clippy:
	name: cargo clippy
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: cargo clippy
	run: cargo clippy --all --all-targets -- -D warnings

	test:
	name: cargo test
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: cargo test
	run: cargo test

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