Answer:
Company A
EBITA = $160m, growth = 2%, Cost of Capital = 10%, ROIC = 15%
Value = (EBITA * (1 - Growth/ROIC)) / (WACC - g)
Value = (160*(1 - 2/15)) / (0.1-0.02)
Value = 138.67 / 0.08
Value = 1,733
EV/EBITA = Value / EBITA
EV/EBITA = 1,733/160
EV/EBITA = 10.83x
Company B
EBITA = $160m, growth = 6%, Cost of Capital = 10%, ROIC = 10%
Value = (EBITA * (1 - Growth/ROIC)) / (WACC - g)
Value = (160*(1 - 6/10)) / (0.1-0.06)
Value = 64 / 0.04
Value = 1,600
EV/EBITA = Value / EBITA
EV/EBITA = 1,600/160
EV/EBITA = 10x