-7.7% is the change from 701 to 647
Calculation steps:
[( 647 - 701 ) ÷ 701] x 100 = -7.7%
Formula
Percentage change = [(647 - 701) / 701] x 100
Subtract the new number by the original number
647 - 701 = -54
-54 ÷ 701 = -0.07703281027104136
-0.07703281027104136 x 100 = -7.7%