31,188.38 the day Uncle Joe was sworn in, so +8,811.62 - 28.25% of what he started with.

By point of comparison:

Trump:
1/20/2017 - 19,827.25
5/15/2020 - 23,685.42
+3,858.17 - 19.46% of starting value.

Obama 1st Term:
1/20/2009 - 7,949.09
5/16/2012 - 12,598.55
+4,649.46 - 58.49% of starting value.

Obama 2nd Term:
1/22/2013 - 13,712.21
5/16/2016 - 17,710.71
+3,998.5 - 29.16% of starting value.

Source:
https://finance.yahoo.com/quote/^DJI/history/?period1=694362600&period2=1715877818