![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
Original: $68
\New: $76
\Since the new amount is greater than the original, this is a percent of increase.
\The amount of change = New amount – Original amount.
\The amount of change = ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0397d0ea0445dd88f66156690d684070.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Let r be the percentage of increase.
\Use the original number, 68 as the base.
\The percent proportion is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=69ce4538228f1883d2210a15b747e771.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step3.JPG\")
To solve for r, first find the cross products.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=35bbc8e92369aede2c20caf16e2bc79a.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=04a62fe58e8533448d8301e13790d75f.png\")
Divide each side by 68.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=aa74398df2585e5a0229a8d1950c30c4.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d01e17d13174ca33978f5b0933b3b6c8.png\")
The percentage of increase is above 12%.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The percent of change is a percent of increase.The percentage of increase is above 12%.