Multi currency conversion inside script editor

[Blueplanet]

Hi

Is there a solution in which i can get the perfect currency conversion in script editor?

In here https://help.shopify.com/en/manual/checkout-settings/script-editor/scripts-multicurrency it says that diffrenct currencies from you'r store currencies are converted to you'r store's currency and then script editor's script is executed. But when i run my script with multi currency enabled i can see slight conversion error happing. In my store we are giving tiered discounts if the purchase total exceeds the required amount of the tier, and when i test this script on diffrenct currency i can see the currency's are converting slightly off. The data from  https://cdn.shopify.com/s/javascripts/currencies.js is also slightly off from what the data the shopify's servers are using.