Kelly had 64 plums. She gave her friend 16 plums and her sister 32 plums. This leaves Kelly with 16 plums. The percentage of plums remaining for Kelly can be calculated by dividing the number of plums she has left (16) by the total number of plums (64) and multiplying by 100. Therefore, Kelly has 25% of the plums remaining.
Working: 64 plums total
16 plums given to friend
32 plums given to sister = 16 plums remaining for Kelly
16/64 * 100 = 25%