How did they find Pretax Operating Income? Please show calculations or formula.

1. ROA Model 2018 2017 2016 2015 14,978,191 Total Assets Total Av Assets Net income before tax Return on Average Assets 18,773,294 18,096,229 147,575 0.815501395 17,419,164 16,742,779 149,662 0.893889838 16,066,394 15,522,293 125,769 0.810247584 Total Operating Revenue NI before tax Total Av.Assets Asset Utilization Net profit Margin Pre Tax Return on Average Assets 357,575 147,575 18,096,229 0.019759642 0.41271062 0.815501395 390,383 149,662 16.742.779 0.0233165 0.383372227 0.893889838 340,946 125,769 15,522.293 0.021964925 0.368882462 0.810247558 ROA (average) has increased from (2016) 0.81% to (2017) 0.89% which means that the profitability of the bank increased mainly due to an increase in the net profit margin. The percentage change in NI is 18.997 which is greater than the percentage increase in Total Operating Revenue which is 14.499%. This shows that the firm was efficiently using its assets to generate sales revenue during 2016 and 2018. However, ROA has decreased from (2017) Give Feedback to Microsc 2018 2017 2016 2015 1,260,677 Total Equity Total Av. Equity NI before tax 1,499 150 1,446,295 147,575 1,393,439 1,351,994 149,662 1,310,549 1,285,613 125,769 Pretax Return on Average Equity 10_20366184 11.06972368 9.782804001 NPM AU EM Pre Tax Return On Average Equity 0.41271062 0.019759642 12.5121329 10.20366184 0.383372227 0.0233165 12.38376724 11.06972368 0.368882462 0.021964925 12.07384532 9.782803686 Pretax operating income Tax mng efficiency Expense control efficiency Asset Mng Efficiency Funds Mng Efficiency PreTax Return On Average Equity 317.169 0.46528822. 0.88699993 0.01975964 12.5121329 10.2036618- 388.383 0.385346424 0.994876826 0.0233165 12.38376724 11.06972368 ROE which is the return on shareholders has increased from 9.78% in 2016 to 11.069 inn 1. ROA Model 2018 2017 2016 2015 14,978,191 Total Assets Total Av Assets Net income before tax Return on Average Assets 18,773,294 18,096,229 147,575 0.815501395 17,419,164 16,742,779 149,662 0.893889838 16,066,394 15,522,293 125,769 0.810247584 Total Operating Revenue NI before tax Total Av.Assets Asset Utilization Net profit Margin Pre Tax Return on Average Assets 357,575 147,575 18,096,229 0.019759642 0.41271062 0.815501395 390,383 149,662 16.742.779 0.0233165 0.383372227 0.893889838 340,946 125,769 15,522.293 0.021964925 0.368882462 0.810247558 ROA (average) has increased from (2016) 0.81% to (2017) 0.89% which means that the profitability of the bank increased mainly due to an increase in the net profit margin. The percentage change in NI is 18.997 which is greater than the percentage increase in Total Operating Revenue which is 14.499%. This shows that the firm was efficiently using its assets to generate sales revenue during 2016 and 2018. However, ROA has decreased from (2017) Give Feedback to Microsc 2018 2017 2016 2015 1,260,677 Total Equity Total Av. Equity NI before tax 1,499 150 1,446,295 147,575 1,393,439 1,351,994 149,662 1,310,549 1,285,613 125,769 Pretax Return on Average Equity 10_20366184 11.06972368 9.782804001 NPM AU EM Pre Tax Return On Average Equity 0.41271062 0.019759642 12.5121329 10.20366184 0.383372227 0.0233165 12.38376724 11.06972368 0.368882462 0.021964925 12.07384532 9.782803686 Pretax operating income Tax mng efficiency Expense control efficiency Asset Mng Efficiency Funds Mng Efficiency PreTax Return On Average Equity 317.169 0.46528822. 0.88699993 0.01975964 12.5121329 10.2036618- 388.383 0.385346424 0.994876826 0.0233165 12.38376724 11.06972368 ROE which is the return on shareholders has increased from 9.78% in 2016 to 11.069 inn