How do you multiply the size for ParticleEmitters?

Ok, so I am trying to replace the Fire inside of a Handle with a Particle Emitter, but the scripting for normal Particles is different for Particle Emitters, and I don't know much about them.

I think I have this part down:

				local fire=sp.Handle:FindFirstChild("Lightning")
				if fire~=nil then
					fire.Size=NumberSequence.new(0)
					fire.Enabled=true
				end

But what do I do here?

					local fire=sp.Handle:FindFirstChild("Lightning")
					if fire~=nil then
						fire.Size=(percent*extrasize*0.5)
					end

Please help!

Particle Emitters are quite easy, if you want to change the size what you have should work. For more documentation on Particle Emitters, visit: ROBLOX Wiki (Particle Emitters)