Hi,
All depends on the configuration of the different modules.
I don't know why you got "21.60" in your mini cart but for the rest the number looks good.
During the checkout, the different number are required ; your customer should have access to these information in order to know what he will pay exactly (shipping, taxes, etc).
Otherwise, HikaShop have plenty settings to let you configure what prices you want to display in the different modules or how you want to display the prices by default.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.