If you buy 3,000 units of the EUR/USD at the market at 1.27363, in a £-denominated account, then one pip will be worth £0.19 (rounded off).

Your trade (position size) will be 3,000 EUR, which equals £2,388.84 at the current price.

Your margin amount used is £238.88, which obviously is 10% of your position size. This corresponds to leverage (as stipulated in your Oanda account) of 10:1.

If you hit your TP at 1.2787, then your profit in pips will be 50.7 pips, which will be £9.51 (using the actual pip-value, not the rounded-off pip-value). This is what your Oanda screen is telling you, and it is correct.

If your SL is hit at 1.2697, then your loss in pips will be -39.3 pips, which will be -£7.37 (again, using the actual pip-value). This is what your Oanda screen is telling you, and it is correct.