-6.65% is the change from 647 to 604
Calculation steps:
[( 604 - 647 ) ÷ 647] x 100 = -6.65%
Formula
Percentage change = [(604 - 647) / 647] x 100
Subtract the new number by the original number
604 - 647 = -43
-43 ÷ 647 = -0.06646058732612056
-0.06646058732612056 x 100 = -6.65%