Dear Elvin thanks for your kind reply, The meta value is number and even I tried above code but still no sorting seen. Please find below links for ref.
Archive list – https://whichisgood.com/index.php/reviewss/
Note- Rating Numbers are showing correctly in Descenting order
Category List –
https://whichisgood.com/index.php/review_categories/testing_1/
Note- Not in Descenting order
Note- ‘overall-rating’ number feild highlighted in green color
