gistfile1.txt

class TipController < ApplicationController
  def form
  	@meal_cost = params[:meal]
  	@tip_percent= params[:tip]
  	@amount_of_people= params[:amount]
  end
end

 def result
   result = (@meal_cost * @tip_percent/100)/@amount_of_people
    render result
  end

Error message

NoMethodError in Tip#result
Showing /Users/Qureshi/Desktop/learning ruby/omnicalc/checkpoint-1/tip_calculator/app/views/tip/result.html.erb where line #5 raised:

undefined method `*' for nil:NilClass
Extracted source (around line #10):