ॐ श्रीं ह्रीं श्रीं कमले कमलालये प्रसीद प्रसीद
ॐ श्रीं ह्रीं श्रीं महालक्ष्मयै नम:॥
Om Shreem Hreem Shreem Kamale Kamalalaye Praseed Praseed
Om Shreem Hreem Shreem Mahalakshmaye Namah॥
Devotees practice various Mantras to appease Maha Lakshmi, the Goddess of wealth and prosperity. However this Mantra of Goddess Lakshmi, which is also known as Mantra of Mahalakshmi, is the most popular and widely accepted one.