diff --git a/index.html b/index.html
index 9540768..2e6948c 100644
--- a/index.html
+++ b/index.html
@@ -347,7 +347,7 @@ <h4 id="import-an-existing-json-file">Import an existing json file</h4>
                       <p>Character change per correct action <i class="plus icon" style="float: right;"></i></p>
                   </div>
                   <div class="content">
-                    <p>CPA = TCC / AC</p>
+                    <p>CPC = IF / (DAC + SAC)</p>
                   </div>
                  </div>
               </td>