Slider gui custom increment

I made a slider gui following a tutorial, the problem is the “step” relies on a number like 0.01, but I want to make it an increment.

For example, if it were a fov value, the max value would be 120, and the min value would be 50, and the increment/step could be 1 so that’s how much it increases by when sliding. The problem is I don’t know how to implement this

local UserInputService = game:GetService("UserInputService")
local RunService = game:GetService("RunService")

local sliderButton = script.Parent
local sliderFrame = sliderButton.Parent

local sliding = false

local function snap(number, factor)
	if factor == 0 then
		return number
	else
		return math.floor(number/factor + 0.5) * factor
	end
end

UserInputService.InputEnded:Connect(function(input, gameProcessedEvent)
	if gameProcessedEvent then
		return
	end
	
	if input.UserInputType == Enum.UserInputType.MouseButton1 then
		sliding = false
	end
end)

script.Parent.MouseButton1Down:Connect(function()
	sliding = true
end)

RunService.PreRender:Connect(function()
	if sliding then
		local mousePosition = UserInputService:GetMouseLocation().X
		local sliderPosition = sliderButton.Position
		local frameSize = sliderFrame.AbsoluteSize.X
		local framePosition = sliderFrame.AbsolutePosition.X
		local position = snap((mousePosition - framePosition)/frameSize, 0.01)
		local percentage = math.clamp(position, 0, 1)
		sliderButton.Position = UDim2.new(percentage, 0, sliderPosition.Y.Scale, sliderPosition.Y.Offset)
	end
end)