Former President Donald Trump and New York Attorney General Letitia James, in separate media appearances, addressed the ruling Friday evening, trading barbs while reacting to the judgment.

Speaking from his Mar-a-Lago estate in Florida, Trump said he had to pay a fine for "having built a perfect company." Accusing both James and Judge Arthur Engoron of being politically motivated, Trump denied committing any fraud and said he plans to appeal.

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Trump responds to ruling: 'A crooked New State judge just ruled I need to pay a fine'

Meanwhile, in New York, James lauded the ruling as a victory for all Americans and the principles of equal justice under the law -- saying "former presidents are no exception."

"The scale and scope of Donald Trump's fraud is staggering -- and so, too, is his ego and his belief that the rules don't apply to him," she said.

James also heralded Judge Engoron's penalties as effective remedies to "ensure this fraud cannot continue."

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Letitia James delivers remarks after Trump ruling

Based on Friday's decision, former President Trump and his co-defendants will likely owe $463.9 million based on their initial fine and the prejudgment interest imposed by the court, according to a representative for the New York attorney general.

Trump himself will likely owe $453.5 million, between his $354.86 million fine and $98.6 million in interest.

The amount of interest owed by the defendants is set to increase every day they do not pay the fines.

New York Attorney General Letitia James, whose office brought the civil fraud case against Donald Trump, described the ruling as a "tremendous victory for this state, this nation, and for everyone who believes that we all must play by the same rules -- even former presidents."

“When powerful people cheat to get better loans, it comes at the expense of honest and hardworking people," James said in a statement. "Everyday Americans cannot lie to a bank to get a mortgage to buy a home, and if they did, our government would throw the book at them. There simply cannot be different rules for different people."

The former president is "finally facing accountability for his lying, cheating, and staggering fraud," she said.

In addition to the fines imposed on Donald Trump and his co-defendants, the judge's decision leaves the Trump Organization in a constrained position to continue operating their New York-based businesses.

While Judge Engoron backtracked on his September summary judgment ruling -- vacating the part of his order that canceled their business certificates -- Donald Trump and his sons are temporarily unable to lead their namesake company. Trump faces a three-year ban on serving as the leader of a New York company, and his sons face two-year bans.

An independent monitor will continue to oversee the company's finances for at least three years, and the company needs to install a director of compliance.

Regarding the combined $364 million owed by the defendants, experts who ABC News spoke with believe it is unlikely any of them foot the bill immediately; instead, they can cover the fine with a bond while they appeal.

Former Trump Organization controller Jeffrey McConney, a defendant in the case, is scheduled to return to the witness stand this morning for a half-day session of court.

State attorneys are expected to continue to probe the Trump Organization's internal procedures that resulted in the inflated values on Trump's financial statements, including how the former president's own Trump Tower penthouse grew in listed value from $80 million in 2011 to $327 million in 2016.

Judge Arthur Engoron already ruled last week that Trump overvalued the apartment by over $200 million based on the "false and misleading" claim that the residence was 30,000 square feet, rather than its actual size of 10,996 square feet.

When McConney asked Kathy Kaye, a Trump International Realty executive, for assistance valuing the residence in 2013, Kaye cited the penthouse's ties to "celebrity" and its uniqueness as partial reasons to add $20 million to the apartment's listed value, according to an email that was entered into evidence.

"I don't see how one would list below 8K per sq foot at this point, which brings us to 240,000M ... 200,000M is a safe estimate," Kaye wrote in the email.

McConney also appeared to struggled to explain why he used asking prices, rather than the accepted practice of using sale prices, when valuing the penthouse.

The exchange prompted New York AG special counsel Andrew Amer to confront McConney with his testimony during a previous investigative interview, in which McConney said asking prices were a poor measure of value since "you can ask anything you want to."