1.requirements.txt

I have a range, which could be made of two integers or a floating point numbers, and a value within that range. 
I need to convert the range to a fixed size range (0..10) and adjust the value accordingly.
if the value is below the range, return 0.
if the value is above the range, return 10.

for example, range 1 through 100, value 50. convert to range 1 through 10 and adjusted value is 5.

another example, range 10.5 through 55, value of 27.2. convert to range 1 through 10 and the adjusted value is ???

I need to know how to do the conversion of the original range to the target range, and how to adjust the value, accordingly.

2.my current solution.rb

class RangeResults
    
    def score(value)
      range_size = self.high_risk_above - self.goal_below

      adjusted_value = (value - self.goal_below)
      adjusted_value = 0 if adjusted_value < 0
      adjusted_value = range_size if value > self.high_risk_above

      value_percent = (adjusted_value / range_size)

      raw_score = (10 * value_percent)

      score = raw_score.round(0).to_i

      puts "........adjusted value: #{adjusted_value}"
      puts "........range size: #{range_size}"
      puts "........value %: #{value_percent}"
      puts "........raw score: #{raw_score}"
      puts "........final score: #{score}"

      score
    end
end

range = RangeResults.new(:goal_below => 10, :high_risk_above => 60)

range.score(10) #=> 0
range.score(5) #=> 0
range.score(20) #=> 2
range.score(35) #=> 5
range.score(60) #=> 10
range.score(80) #=> 10

thanks david / dean. this appears to be working the way i need it to. :)