Break Up Details (Don's use Rate, its PWD rate 2008)

Considering 1000 cft. of excavation work
(i) Extra labour 0.75 No. @ 150 each = 112.5
Profit 0.1 = 11.25
Overhead 0.035 = 3.94
= 127.69
Add VAT with adjustment factor 1.04712 0.045 = 6.02