Hi soyoung, Happy to discuss with you.
Looking at the first table which showShows the production quality of the theatre, both club members and the general public rated presesent similarly about 70% in excellent, and equally 18% in satisfactory.
Comment.
*Gerund/Verb-ing as subject is singular.
*need verb in your second sentence.
Moving on to the information about the plays/performances, it shows the highest rating in excellent among the three features, -88% of the general public and 72% of club members, while only 10% and 23% respectively rate it as "satisfactory".
Comment.
* no verb in your 2nd sentence.
* whlie form ; Subject Verb, while Subject Verb. Or, while S+V, S+V.
Hope helpful.