Answer :
increment
430 - 400
30
increment percentage
(30 / 400) * 100
(3 / 40) * 100
300 / 40
7.5 %
430 - 400
30
increment percentage
(30 / 400) * 100
(3 / 40) * 100
300 / 40
7.5 %
INCREMENT
430-400=30
PERCENTAGE
(30/400)*100
(30/40)*100
300/40=
7.5% is your final answer
I hope I could help