Hi , Hope I can be of assistance to my fellow South African :-) , Looking at your transactions, an upgoat basically means a paid for upvote, your Steem was initially converted to SBD and then you used your SBD to upvote a post, Only half the value was used for the upvote and the rest was sent to you as a refund, the only reason for that is that there was not enough upvotes to fulfill the amount you sent therefore resulting in the balance being returned. I need to double check with the dev team if the home page calculator is 100 percent functional.
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RE: First Gig Back in South Africa