Answer:first u need to minus the original value-new value then when you got the answer u need to devide it into the original value then times it with 100% Step-by-step explanation:example num 1: new value:130original value:100increase in value :30 130-100=30 30÷100= .3 .3 = 100[30.0 cannot be devide so u add zero 300 =0 =.3/0.3 × 100 100 ×.3 =300. as u can see .3 has one decimal so 30.0 cuz of .3 that's why 30.0 So your final answer the percentage increase is answer:30%/.30