-6.77% is the change from 694 to 647
Calculation steps:
[( 647 - 694 ) ÷ 694] x 100 = -6.77%
Formula
Percentage change = [(647 - 694) / 694] x 100
Subtract the new number by the original number
647 - 694 = -47
-47 ÷ 694 = -0.06772334293948126
-0.06772334293948126 x 100 = -6.77%