use a subtract node.
what you have above, then route the number you were printing to: (100 - <result of multiply by 100>)
alternately, (1 - <result of divide by 20>), before the multiply by 100
use a subtract node.
what you have above, then route the number you were printing to: (100 - <result of multiply by 100>)
alternately, (1 - <result of divide by 20>), before the multiply by 100