Total expenditure during each year $= 500$ million rupees
Total expenditure for $5$ years $= 500 \times 5 = 2500$ million rupees
- Revenue in $2014 = 500$ million rupees
- Revenue in $2015 = 700$ million rupees
- Revenue in $2016 = 800$ million rupees
- Revenue in $2017 = 600$ million rupees
- Revenue in $2018 = 400$ million rupees
Total revenue $= 500+700+800+600+400 = 3000$ million rupees
Profit $= 3000-2500 = 500$ million rupees
Profit percentage $= \left(\frac{500}{2500} \right) \times 100 = 20 \%.$