C = earnings before interest and tax / total assets=($5585+$51)/ $113,195=0.0498
D = market value of equity / total liabilities=$195,460/$114,569=1.706 (Using the
market value of equity $195,460 on June 30,2018 for Boeing)
E= sales / total assets=$47,640/$113,195=0.421
Z-Score=1.2*0.077+1.4*0.462+3.3*0.0498+0.6*1.706+0.421=2.348
So the Z-Score for Boeing is 2.348
As for Apple Company: (Dollars in millions)
A=(Current assets-Current liabilities)/ total assets=($115,761-
$88,548)/$349,197=0.0779
B= retained earnings / total assets=$79,436/$349,197=0.227
C = earnings before interest and tax / total assets=($12,612+$672)/
$349,197=0.0380
D = market value of equity / total liabilities=$909,840/$234,248=3.884 (Using the
market value of equity $909,840 on June 30,2018 for Apple)
E= sales / total assets=$53,265/$349,197=0.153
Z-Score=1.2*0.0779+1.4*0.227+3.3*0.0380+0.6*3.884+0.153=2.994
So the Z-Score for Apple is 2.994