Determine the effect on each company's net income if sales decrease by 20% and if increase by 8% Do not prepare income statements.(Round answers to 2 decimal If% change is negative, enter amount with either a negative sign or parenthesis, e.g -10.52 or(10.52).) Determine the effect on each company's net income if sales decrease by 20% and if increase by 8% Do not prepare income statements.(Round answers to 2 decimal If% change is negative, enter amount with either a negative sign or parenthesis, e.g -10.52 or(10.52).)