Daily New Cases in the U.S.:
Look at the last three days:
March 22 9359
March 23 10168
March 24 11089
The difference between March 22 and March 23 is 809, or 12%.
The difference between March 23 and March 24 is 921, or 11%
The rate of growth dropped a point.
Its just one day
I think they have ramped up testing quite a bit too... so the infection rate compared to tests could be dropping.
I think you have to factor in the widening use of the kits that look for the virus on people. More and more people are being tested each day as the supply of the kits increases.