100M is an order of magnitude more than 60M, by definition. "order of magnitude" doesn't mean "ten times as much", it means "you have to use another column to describe it"... and so 1x10^8 is an order of magnitude more than 6x10^7...
an order of magnitude conventionally means an approximate power of 10; the implicit accuracy of the approximation is such that n orders of magnitude means a multiple between 10^(n-0.5) and 10^(n+0.5).
