-68.93% is the change from 647 to 201
Calculation steps:
[( 201 - 647 ) ÷ 647] x 100 = -68.93%
Formula
Percentage change = [(201 - 647) / 647] x 100
Subtract the new number by the original number
201 - 647 = -446
-446 ÷ 647 = -0.6893353941267388
-0.6893353941267388 x 100 = -68.93%