static decodeBase900toBase10(codewords, count) {
			let result = createBigInt(0);
			for (let i /*int*/ = 0; i < count; i++) {
				result += DecodedBitStreamParser$2.EXP900[count - i - 1] * createBigInt(codewords[i]);
			}
			let resultString = result.toString();
			if (resultString.charAt(0) !== '1') {
				throw new FormatException();
			}
			return resultString.substring(1);
		}
Convert a list of Numeric Compacted codewords from Base 900 to Base 10.

@param codewords The array of codewords
@param count     The number of codewords
@return The decoded string representing the Numeric data.

EXAMPLE
Encode the fifteen digit numeric string 000213298174000
Prefix the numeric string with a 1 and set the initial value of
t = 1 000 213 298 174 000
Calculate codeword 0
d0 = 1 000 213 298 174 000 mod 900 = 200

t = 1 000 213 298 174 000 div 900 = 1 111 348 109 082
Calculate codeword 1
d1 = 1 111 348 109 082 mod 900 = 282

t = 1 111 348 109 082 div 900 = 1 234 831 232
Calculate codeword 2
d2 = 1 234 831 232 mod 900 = 632

t = 1 234 831 232 div 900 = 1 372 034
Calculate codeword 3
d3 = 1 372 034 mod 900 = 434

t = 1 372 034 div 900 = 1 524
Calculate codeword 4
d4 = 1 524 mod 900 = 624

t = 1 524 div 900 = 1
Calculate codeword 5
d5 = 1 mod 900 = 1
t = 1 div 900 = 0
Codeword sequence is: 1, 624, 434, 632, 282, 200

Decode the above codewords involves
  1 x 900 power of 5 + 624 x 900 power of 4 + 434 x 900 power of 3 +
632 x 900 power of 2 + 282 x 900 power of 1 + 200 x 900 power of 0 = 1000213298174000

Remove leading 1 =>  Result is 000213298174000

@throws FormatException