apter 9 Assignment i CH 11 The Social Security Administration increased the taxable wage base from $127.200 to $128 400. The 6.2% tax rate is unchanged. Joe Burns came over $130 900 each of the past two years a. What is the percent increase in the basc (Round your answer to the nearest hundredth percent Percent increas Rulesente b. What is Joe's increase in Social Security tax for the now year? Round your answer to the nearest Cent) Increase nocal security tax