Shown here are condensed income statements for two different companies $($assume no income taxes$).$

Miller Company

Sales $ $1,000,000$

Variable expenses $(80\%)800,000$

Income before interest $200,000$

Interest expense $($fixed$)60,000$

Net income $ $140,000$

Weaver Company

Sales $ $1,000,000$

Variable expenses $(60\%)600,000$

Income before interest $400,000$

Interest expense $($fixed$)260,000$

Net income $ $140,000$

$3.$ What happens to each company$$s net income if sales increase by $50\%?$