You are right on the value of your upvotes requiring less SP to get 0.01 I am just not sure of the exact percentage but when sbd was at $15 and steem around 7, it took about 30 or 60 sp to get that 0.01 upvote. When i had about 600 sp my upvote went as high as 0.12 before the downward spiral we have had for the last 6 + months.