no-copy-frontend/src/app/lib/getProcents.ts

export function getProcents(
	currentNumber: number | undefined,
	totalNumber: number | undefined,
	decimals: number = 0
): number {
	if (!currentNumber && !totalNumber) {
		return 0;
	}

	if (totalNumber === 0 || typeof currentNumber === 'undefined' || typeof totalNumber === 'undefined') {
		return 0;
	}

	const percentage = (currentNumber / totalNumber) * 100;
	const factor = Math.pow(10, decimals);

	return Math.round(percentage * factor) / factor;
}