For this upgrade you will have:

R$ 0.01 in fixed (guaranteed) earnings per day in PTC (if you click every day)

R$ 0.21 in fixed (guaranteed) earnings per day in VIDEOS (if you watch every day)

= R$ 0.22 x 30 days = R$ 6.60
= R$ 6.60 x 12 months = R$ 79.20
(you invested R$ 70 in the upgrade and earned R$ 9.20, which gives an ROI of +13% annual profit)

+5% ref click
+5% ref videos
+ads depending on the advertisers on the site.