合同签订后7日内支付预付款：合同价款的30%的翻译：Pay advances within the 7th after the contract: contract price 30% 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

7 days after signing the contract advance payment: 30% of contract price

Pay advances within the 7th after the contract: contract price 30%

The contract signs in latter 7th to pay the advanced payment: Contract cost 30%

Contract 7 days after payment of the contract price advance payment: 30 %

Pay advances within the 7th after the contract: contract price 30%