-63.08% is the change from 669 to 247
Calculation steps:
[( 247 - 669 ) ÷ 669] x 100 = -63.08%
Formula
Percentage change = [(247 - 669) / 669] x 100
Subtract the new number by the original number
247 - 669 = -422
-422 ÷ 669 = -0.6307922272047832
-0.6307922272047832 x 100 = -63.08%