Brightness Group

Woocommerce product backend page add markup(%) field in which add percentage which you want to increase price of product using plugin. if you want to decrease by some percentage add markup(%) field value as nagative.
eg. 
1) Product price $150 and if increase value by 20% in backend add 20 and its display price in frontend $180. 
2) Product price $150 and if decrease value by 20% in backend add -20 and its display price in frontend $120.
<h4>Required Plugin</h4>
Woocommerce

Product Price Markup for Woocommece

Price increase by percentage for WooCommerce Shop product.

Tyrel Kelsey

Remove empty paragraph tags, and broken paragraph tags caused by shortcodes with content.
<a href="https://github.com/ninnypants/remove-empty-p" rel="nofollow ugc">github</a>

Remove Empty P

Remove empty paragraph tags, and remove broken paragraph tags from around block level elements.

Product Price Markup for Woocommece vs Remove Empty P