The following pie-chart and table represent the distribution of total number washing machines, say brand A and brand B sold by six shops during the year 2020.

Shops	Brand A	Brand B	Total
P	672	896	1,568
Q	280	840	860
R	896	1120	2,016
S	1344	1568	2,912
T	1792	448	2,240
U	640	704	1,344

What is the average of washing machine brand A sold by shops Q, S, T and U together?