以上报价以人民币为准
Above quoted price/offer depends on/relies on the fluctuation of RMB (currency).
Above quoted price/offer is basis on the fluctuation of RMB currency.
(The fluctuation of) RMB currency is the basic reference of above offer/quoted price.
可以有好多种回答,看你怎么用,用在哪里.
希望帮到.