diff --git a/README.md b/README.md
index 4a51be1..af0c590 100644
--- a/README.md
+++ b/README.md
@@ -62,6 +62,7 @@ $ fermi
             beta:                          beta alpha beta
     Variable assignment:                   =: variable_name
     Variable assignment and clear stack:   =. variable_name
+    Suffixes:                              %, K, M, B, T
     Special commands:
          Comment:                          # this is a comment
          Summary stats:                    stats
@@ -191,6 +192,7 @@ Done:
 - [x] Figure out how to make models executable, by adding a #!/bin/bash-style command at the top?
 - [x] Make -n flag work
 - [x] Add flag to repeat input lines (useful when reading from files)
+- [x] Add percentages
 
 To (possibly) do:
 
@@ -202,6 +204,7 @@ To (possibly) do:
 - [ ] Represent samples/statistics in some other way
 - [ ] Perhaps use qsort rather than full sorting
 - [ ] Program into a small device, like a calculator?
+- [ ] Units?
 
 Discarded: