diff --git a/mba/ch30.org b/mba/ch30.org
index cc55133..6f9d538 100644
--- a/mba/ch30.org
+++ b/mba/ch30.org
@@ -61,8 +61,6 @@ PE * net_income = Value
 10 * $1mn = $10mn
 
 ** what is the company worth today
-VC expects to make 50% per year
-
-
-
-therefore
+- VC expects to make 50% per year
+- (Value of Company in 5 Years) / (1 + Percentage Earnings Per Year) ^ (Number of Years)
+- $10 mn / (1 + 50%) ^ 5