-69.06% is the change from 669 to 207
Calculation steps:
[( 207 - 669 ) ÷ 669] x 100 = -69.06%
Formula
Percentage change = [(207 - 669) / 669] x 100
Subtract the new number by the original number
207 - 669 = -462
-462 ÷ 669 = -0.6905829596412556
-0.6905829596412556 x 100 = -69.06%