The income statements of Pharoah Corporation show the following amounts:

202020192018Net sales$810$780$730Cost of goods sold590557491Gross profit220223239Selling, general, and administrative expenses210164121Profit before tax1059118

Using vertical (common-size) analysis, analyze Pharoah Corporation's declining profit before tax.(Round answers to 0 decimal places, e.g. 52%.)

202020192018Net sales

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