April 27, 2017. Difficulty rose by +0.22% to 521.97B from 520.81B.
Change
+0.22%
New difficulty
521.97B
Period length
14.0 days
Network hashrate then (7-day)
3.8 EH/s
Bitcoin price then
$1,288
Hashprice then
$602/PH/day
The 2,016 blocks before it took 14.0 days instead of 14, so the network had more hashrate than the difficulty assumed, and difficulty rose by 0.22%: a small correction. For every machine on the network that is a pay cut of the same size until the next retarget.