I think its supposed to be divide so i think C. would be the answer
Answer:
where is x ..... show that first
Percent increase=increase/original times 100
increase=26-21=5
original=21
so
5/21 times 100=0.23809523809523809523809523809524 times 100=23.809523809523809523809523809524
round
24%
so 24% increase
I think the answer is b 0.2(20)