What percentage is the change

a) from number [[$ 420 $]] to number [[$ 460 $]]?



Answer: The change is [[$ \% $]].

b) from number [[$ 480 $]] to number [[$ 400 $]]?



Answer: The change is [[$ \% $]]?

c) from [[$ 6.2 $]] kilograms to [[$ 7.4 $]] kilograms?



Answer: The change is [[$ \% $]].

d) from [[$ 3.42 $]] metres [[$ 3.64 $]] to metres?



Answer: The change is [[$ \% $]].

e) from 120 QAR to 110 QAR ?



Answer: The change is [[$ \% $]].

f) from 75% to 67%?



Answer: The change is [[$ \% $]].