原价

Standard retail/e-commerce vocabulary, often paired with 现价 (xiànjià, current/sale price), 折扣价 (zhékòujià, discounted price), and 打折 (dǎzhé, to discount). On Taobao/JD listings you'll see 原价 ¥XXX with a strikethrough next to the actual sale price.

memory

原 (original) + 价 (price) — straightforward calque. Compare 售价 (shòujià, selling price), 标价 (biāojià, marked/listed price), 成本价 (chéngběnjià, cost price).