cost — The cost of something is the amount of money that is needed in order to buy, do, or make it.
verb estimated
calculated — If something is calculated to have a particular effect, it is specially done or arranged in order to have that effect.
disregarded — to pay no attention to; leave out of consideration; ignore: Disregard the footnotes.
hesitated — to be reluctant or wait to act because of fear, indecision, or disinclination: She hesitated to take the job.
ignored — to refrain from noticing or recognizing: to ignore insulting remarks.
disbelieved — Simple past tense and past participle of disbelieve.
estimated — Simple past tense and past participle of estimate.
forgot — a simple past tense and past participle of forget.
guessed — to arrive at or commit oneself to an opinion about (something) without having sufficient evidence to support the opinion fully: to guess a person's weight.