private static ushort SameScale(ref BigDecimal left, ref BigDecimal right)
        {
            var newScale = Math.Max(left.scale, right.scale);

            left  = left.Upscale(newScale);
            right = right.Upscale(newScale);
            return(newScale);
        }
		private static ushort SameScale(ref BigDecimal left, ref BigDecimal right) {
			var newScale = Math.Max(left.scale, right.scale);
			left = left.Upscale(newScale);
			right = right.Upscale(newScale);
			return newScale;
		}