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I actually has more weight depending on the amount in the rewards pool. Steem has an inflation rate of 9% annually and a fraction of that is released each day. The rewards pool is based upon the
1.) Price of Steem "been going down"
2.) The amount of votes going out in the rewards pool "been increasing due to increase posts, and increase in users"
There is only X amount of dollars that get divided each day, and if that pool of dollars has more competition, or is worth less overall then it is obviously harder to gain more value. Hope this helps!

and then steem power gets in high demand, and price goes up

Thanks craig

Very simple and useful information man. Thanks a lot

the upvote will vary depending on the price of steem.

its because the price of steem is low.

Yes i know that but i mean if the price goes to $3 USD the value of each upvote grows at least 35% in my calculation yes

Yeah that would do it you have a good bit of sp now nice