Respuesta :
Answer:
Question 1. Â 38.6 % Â 2. Â 61.4%
Step-by-step explanation:
(New Cost - Old Cost) Ă· old Cost Ă— 100
  (305 - 220) ÷ 220 x 100
  =  85/220 x 100
  = 38.6 %
2. Â New Cost 305 + 50 = $355 Â Â
  Â
(Now new cost - old cost) Ă· old cost Ă— Â 100
  (355 - 220)  ÷ 220 Ă— 100 Â
  =  135/220 × 100
    61.4% Â