Patryk

For WooCommerce plugin – hide “add to cart” button and price (single product and product list/archive).
Just active plugin to start “catalog mode” (hide “add to cart” and price).

PRyC WP/WooCommerce: Catalog Mode

For WooCommerce plugin - hide "add to cart" button and price (single product and product list/archive).

MohammadJafar Khajeh

You can specify a minimum quantity for a product. When the user adds the product to the cart and if the number of wanted quantity was greater than the minimum you specific, the price of the product will change to what you want. 
That price can be a percent or a specific value. 
This is wholesale.
<h4>One more thing</h4>
The plugin using i18n, So you can translate it for your language. 
The plugin has been translated to Persian already.
<a href="https://github.com/mjkhajeh/woocommerce-wholesale" rel="nofollow ugc">GitHub Repo</a>

Wholesale

Changes the price of the product in the shopping cart according to its quantity

PRyC WP/WooCommerce: Catalog Mode vs Wholesale