哪位英语高手帮忙把以下句子翻译成英语?这款新产品比旧产品便宜20%

The new lauched item is 20% cheaper than the regular one.

This new product is 20% cheaper than the old one.

This new product is 20% cheaper than the regular one

新推出的项目比常规项目优惠20%。