answer already just need to know how to do it

A bank has $250 million in assets in the 0 percent risk-weight category. It has $274 million in assets in the 20 percent risk-weight category. It has $188 million in assets in the 50 percent risk-weight category and has $403 million in assets in the 100 percent risk-weight category. This bank has $84 million in Tier 1 capital and $107 million in Tier 2 capital. What is this bank's ratio of Tier 1 capital to risk-weighted assets? Type your answer as percentage and not as decimal (i.e. 5.2 and not 0.052). Round to the nearest two decimals if needed. Do not type the \% symbol