diff --git a/README.md b/README.md
index 801bd6f..f71ec6d 100755
--- a/README.md
+++ b/README.md
@@ -176,7 +176,7 @@ Finance.js
  // e.g., If number of periods is 5, initial investment is -$50, and the cash flows are $10, $13, $16, $19, and $22 for each year, the payback period is 3.42 years.
 
  finance.PP(5, -50, 10, 13, 16, 19, 22);
- => 3.42</code></pre>
+ => 3.58</code></pre>
 
  <h3 id="PV">Present Value (PV)<br>
 
@@ -280,4 +280,4 @@ Contributions are welcome to aid in the expansion of the library. In lieu of a f
 ### To Do
 
 - Expand library with more financial calculations
-- Include edge cases in testing, if any
\ No newline at end of file
+- Include edge cases in testing, if any