Hope you could get an idea from here.
Doubt clarification- use comment section.
Answer:
100% increase from 100 is 200, the difference is 100.
100% decrease from 100 is 0, the difference is -100
error means that you were quite a long way off from the true value.
Answer: multiply by 6
Step-by-step explanation:
3×6=18
18×6=108
108×6=648