A bank has the asset structure in 2008 and 2021 as shown in the table. Insert the appropriate risk weights and calculate the total on-balance-sheet risk-weighted assets for the bank. Calculate the credit equivalent amounts of risk-weighted assets for the banks off-balance-sheet items. What are the amounts of total risk-weighted assets? Calculate the minimum total capital requirement and minimum Tier 1 capital requirement as stipulated under the risk-assets ratio framework. The table reports the banks actual Total Capital Ratio and Tier 1 Capital Ratio. Use these data to calculate the amounts of total capital and Tier 1 capital the bank was holding.

I have worked everything out but I need help with how to calculate the Total capital ratio and Tier 1 capital ratio

Please help

	Assets, m			RWA, m
	2008	2021	Risk Weight	2008	2021
Cash	12,400	177,757	0.00	-	-
Interbank loans	138,197	52,217	0.20	27,639	10,443
Securities maturing within 1 year	1,308,138	167,623	0.20	261,628	33,525
Mortgage loans	265,683	108,839	0.50	132,842	54,419
Commercial and industrial loans	619,928	253,957	1.00	619,928	253,957
Total assets	2,401,652	781,992		1,042,036	352,345
Unused loan commitments	43,326	18,910	0.00	-	-
Commercial letters of credit	21,663	31,516	0.20	4,333	6,303
Revolving underwriting facilities	151,641	31,516	0.50	75,821	15,758
Standby letters of credit	216,631	44,123	1.00	216,631	44,123
Off-balance sheet items	433,261	126,065		296,784	66,184
Total assets + OBS	2,834,913	908,057		1,338,820	418,529
Total capital			0.08	107,106	33,482
Tier 1 capital			0.04	53,553	16,741
Total capital ratio	14.1	24.1
Tier 1 capital ratio	10.0	20.7