This means the internal growth rate is:
Internal growth rate = (ROA × b)/[1 – (ROA × b)]
22. Since the company issued no new equity, shareholders’ equity increased by retained earnings.
Retained earnings for the year were:
Retained earnings = NI – Dividends
So, the equity at the end of the year was:
The ROE based on the end of period equity is:
The plowback ratio is:
Plowback ratio = Addition to retained earnings/NI
Using the equation presented in the text for the sustainable growth rate, we get:
Sustainable growth rate = (ROE × b)/[1 – (ROE × b)]
The ROE based on the beginning of period equity is
Using the shortened equation for the sustainable growth rate and the beginning of period ROE, we
get:
Sustainable growth rate = ROE × b
Using the shortened equation for the sustainable growth rate and the end of period ROE, we get:
Sustainable growth rate = ROE × b