What do these ratios suggest about the companys performance during the two periods presented?

Which ratios would a senior operational manager for WGC be most interested in following? Why?

Wicked Good Cupcakes
	31-Dec-15	31-Dec-16
Profitability Ratios (in %)
Return on equity	19.71%	16.60%
Return on assets	13.54%	9.30%
Return on invested capital	18%	12%
Profit margin	7.89%	6.03%
Gross margin	47%	44%
Turnover-Control Ratios
Asset turnover	1.72	1.54
Fixed-asset turnover	6.5	6.4
Inventory turnover	4.2	4.1
Collection period (days)	3.3	4.03
Days' sales in cash	1,618.14	1,839.02
Payables period	40.39	47.3
Leverage and Liquidity Ratios
Assets to equity	1.46	1.79
Debt to assets	0.07	0.18
Debt to equity	0.1	0.33
Times interest earned	24.24	28.11
Current ratio	3.01	3.07
Acid test	1.03	1.31
Table 1