Create a formula field that returns an image to indicate data quality.
Sales Managers have asked for an at-a-glance solution to see completeness on leads. Create a helper formula field that looks at 5 key fields on the Lead object and evaluates their completeness, then a second formula field that references the helper formula and returns an image.The helper formula field should be on the Lead object with a name of 'Lead Quality Helper' and a resulting API name of 'Lead_Quality_Helper__c'.
The helper formula should be of type Number.
The helper formula should evaluate the following 5 fields: Email, Phone, Company, Title, and Industry and return 0 if blank and 1 if not blank. The formula should then add all the values together to return a total value.
The image formula should be on the Lead object with a name of 'Lead Quality' and a resulting API name of 'Lead_Quality__c'.
The image formula should reference the helper formula, and return an image based on the number returned by the helper formula. The helper formula should be of type Text. Note: All of these images are already available in your Developer Edition.

1 = /img/samples/stars_100.gif with alternate text '1 star'
2 = /img/samples/stars_200.gif with alternate text '2 stars'
3 = /img/samples/stars_300.gif with alternate text '3 stars'
4 = /img/samples/stars_400.gif with alternate text '4 stars'
5 = /img/samples/stars_500.gif with alternate text '5 stars'

If none of the fields are filled out, the default should be /img/samples/stars_000.gif with alternate text '0 stars'.
The 'Lead Quality' formula must be added to the Lead Layout page layout.Check Challenge


ANS:
Lead Quality (Text) =
IF(Lead_Quality_Helper__c=1, 
IMAGE("/img/samples/stars_100.gif","1 star"), IF(Lead_Quality_Helper__c=2, IMAGE("/img/samples/stars_200.gif","2 stars"), IF(Lead_Quality_Helper__c=3, 
IMAGE("/img/samples/stars_300.gif","3 stars"), 
IF(Lead_Quality_Helper__c=4, 
IMAGE("/img/samples/stars_400.gif","4 stars"), 
IF(Lead_Quality_Helper__c=5, 
IMAGE("/img/samples/stars_500.gif","5 stars"), 
IMAGE("/img/samples/stars_000.gif","0 stars"))))))


Lead Quality Helper (Number) =
IF(ISBLANK(Email),0,1)+ 
IF(ISBLANK(Phone),0,1)+ 
IF(ISBLANK(Company),0,1)+ 
IF(ISBLANK(Title),0,1)+ 
IF(ISBLANK(TEXT(Industry)),0,1)

I can't see what I am doing wrong. Everything works just fine but I keep getting this error. 
Challenge Not yet complete... here's what's wrong: 
The Lead object does not display the formula fields correctly. Tip: check the requirements again and make sure you have the correctly forumlas and their values.


Any help will be appreciated. Thanks.