Please find your page builder below and do it properly.
If your page builder is not listed below, read your page builder's documentation on how to install a shortcode.
Step 1 - Copy the Shortcode 
Step 2 - Paste The Shortcode
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Elementor
- For Element, do not use the 'text widget'. Please use 'shortcode'.
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Gutenberg
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WP Bakery ( Visual Composer )
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DIVI Theme's Builder
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Beaver Builder
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Stylish Cost Calculator
https://stylishcostcalculator.com/
Tags: WordPress price quote plugin