Quote from: philipma1957 on July 24, 2016, 07:30:54 PM

http://nextdifficulty.com/

NEXT BITCOIN DIFFICULTY CHANGE

Current Hashrate: 1449804 TH/s* - Current price $ 654.89

Conservative: -4.8% -5.7% Continous: -8.4 %
Next Difficulty Value:201281440354 <<<<<<<<<<<<< new diff to be 201
Blocks to solve in this difficulty: 1247

422123 (Main Chain) 2016-07-24 19:31:55
421344 (Main Chain) 2016-07-18 23:22:42

779 blocks in 5 days 20 hours 10 min

841 would be 0%

779/841-1 = -7.3721% real time.

Im surprised none of the nextdifficulty.com numbers match the real time one. And its the simplest method how to predict difficulty so I dunno why they dont use it (actually you need some blocks found to even compute it, but after first day, the real time prediction is usefull).