 
<translate> Buru ụzọ gbanwee ego ego ahụ gaa na cents: $26 * 100 cents / dollar = 2600 cents. Mgbe ahụ, mụbaa nke ahụ site na pasent 5 iji chọta ego ole Gina na-enye ná mbinye aka: pasent 2600 * pasent 5 = pasent 130. Mgbe ahụ jiri pasent 20 mụbaa ego ahụ n'ụgwọ ahụ iji chọta ego ole a na-akwụ n'ụtụ isi: pasent 2600 * pasent 20 = pasent 520. Mgbe ahụ, wepụzie ego mmachi akpa dị mma site n'ego mmachi akpa na-adịghị mma iji chọpụta ego ole ọ dị mkpa ka Gina nyekwuo: 520 cents - 130 cents = 390 cents. Azịza ya bụ: 390. <eng> First convert the bill amount to cents: $26 * 100 cents / dollar = 2600 cents. Then multiply that amount by 5% to find the amount Gina normally tips: 2600 cents * 5% = 130 cents. Then multiply the bill amount by 20% to find the amount of a good tip: 2600 cents * 20% = 520 cents. Then subtract the good tip amount from the bad tip amount to find how much more Gina needs to tip: 520 cents - 130 cents = 390 cents. The answer: 390. 