government contract work

Venkatesh K N (student) (178 Points)

01 August 2018  
I did government work done of ₹978,000 + GST 117,360

For this bill work, I purchased goods

Cement ₹234,620 + GST 65,694
Iron & Others ₹434,280 + GST 78,170
Total input ₹143,864
Total Output ₹117,360

Due to heavy rain I lost ₹2lakhs cement and some others material what I have input taken...

what is the actual payment I have to be paid to this Contract amount
in (%)???