How many words does it take to send a text message with a mobile phone number? How is it calculated?

70 words count as one. Find it yourself. When sending a text message, the phone will show how many words are left. Find it yourself. If you don't type a word, there will be one less number. If there are more than 70 words (if there are punctuation marks, spaces are counted separately), if there are more than 70 words, the text messages you sent in the past will be 20 cents, if there are more than 140 words, 30 cents, and so on.