-7.57% is the change from 700 to 647
Calculation steps:
[( 647 - 700 ) ÷ 700] x 100 = -7.57%
Formula
Percentage change = [(647 - 700) / 700] x 100
Subtract the new number by the original number
647 - 700 = -53
-53 ÷ 700 = -0.07571428571428572
-0.07571428571428572 x 100 = -7.57%