The account balances for the year ended December 31, 2013, for Williams Industries are listed next:
Sales Revenue .......... $322,800
Equipment .......... 104,000
Accounts Payable ....... 16,500
Sales Discounts ........ 2,200
Advertising Expense ...... 12,600
Interest Expense ......... 1,700
Wages Payable ........ 1,600
Accounts Receivable ....... 6,900
Building ........ 140,000
Sales Returns and
Allowances ......... 6,700
Common Shares ..... 35,000
Utilities Expense ..... 10,300
Inventory ........ 16,400
Commission Expense ...... 22,300
Supplies ......... 600
Cost of Goods Sold ...... $158,400
Accumulated Depreciation,
Equipment ......... 26,400
Unearned Sales Revenue ..... 2,500
Prepaid Rent ........ 1,200
Office Salaries Expense ..... 52,000
Accumulated Depreciation,
Building ........ 40,500
Rent Expense ........ 5,800
Dividends ........ 14,000
Cash ............ 7,800
Retained Earnings ...... 87,600
Delivery Expense ..... 1,300
Insurance Expense ..... 5,700
Mortgage Payable
(Long-Term) ......... 37,000
Requirements
1. Calculate the gross profit percentage for Williams Industries for the year.
2. The gross profit percentage for 2012 was 51.3%. Did the gross profit percentage improve or deteriorate during 2013? 
3. Calculate the current ratio for Williams Industries.
4. The current ratio for 2012 was 1.47. Did the current ratio improve or deteriorate during 2013?