-80.68% is the change from 647 to 125
Calculation steps:
[( 125 - 647 ) ÷ 647] x 100 = -80.68%
Formula
Percentage change = [(125 - 647) / 647] x 100
Subtract the new number by the original number
125 - 647 = -522
-522 ÷ 647 = -0.8068006182380216
-0.8068006182380216 x 100 = -80.68%