Price Table Plugin

Heyy everyone, I would like to ask for a little help here.
I can't find a plugin. The one I need is like in this page: http://www.onprint.lt/dovan%C5%B3-kuponas-drob%C4%97ms/

So it's calculating the price, based on attributes AND quantity (for example 20 BIG papers cost 5$, 40 BIG papers cost 8$; 20 SMALL papers cost 3$ and 40 SMALL papers cost 6$)
I would be really appreciated if someone could help finding this type of plugin

I think it is using options, which opencart does by default. However, calculating price immediately needs an extension such as this https://www.marketinsg.com/live-price-update