+33616 Make the fraction 1400/2663, then multiply by 100 to turn it into a percentage.
$${\frac{{\mathtt{1\,400}}}{{\mathtt{2\,663}}}}{\mathtt{\,\times\,}}{\mathtt{100}} = {\mathtt{52.572\: \!286\: \!894\: \!479\: \!909\: \!9}}$$
So 1400 is approximately 52.57% of 2663
