Using the information contained in tables 9.4 and 9.5, calculate Barclay's ROA, ROE, NIM and C/I ratios

ROA - return on assets

ROE - return on equity

NIM - net interest margin

C/I - cost to income ratio

calculate and show your working in details. show each number is from where.

Table 9.4 Barclays Bank assets, 2008-2012 (mil) Assets 2008 2009 2010 2011 2012 Cash and balances at central banks 30,019 81,483 97,630 103,087 81,996 Items in course of collection from 1,695 1,593 1,384 1,634 1,076 other banks Trading portfolio assets 185,637 151,344 168,867 85,048 74,719 Financial assets designated at 121,199 42,568 41,485 44,552 82,237 fair value Derivative financial instruments 984,802 416,815 420,319 546,921 476,129 Available for sale investments Loans and advances to banks Loans and advances to customers 461,815 64,976 56,483 47,707 41,135 420,224 427,942 65,110 47,979 61,753 37,799 52,287 51,175 Reverse repurchase agreements and other similar secured lending 130,354 143,431 205,772 517,780 474,723 161,436 174,284 Prepayments, accrued income and 6,302 6,358 5,269 10,384 12,019 other assets Investments in associates and joint 341 422 518 174 174 ventures Investments in subsidiaries 22,073 14,718 Property, plant and equipment 4,674 5,626 6,140 1,937 1,906 Goodwill and intangible assets 10,402 8,795 8,697 4,333 4,564 Current and deferred tax assets 3,057 2,652 2,713 1,270 1,414 Retirement benefit assets 1,708 2,276 Total assets 2,052,980 1,378,929 1,489,645 1,602,603 1,515,163