-20.93% is the change from 669 to 529
Calculation steps:
[( 529 - 669 ) ÷ 669] x 100 = -20.93%
Formula
Percentage change = [(529 - 669) / 669] x 100
Subtract the new number by the original number
529 - 669 = -140
-140 ÷ 669 = -0.20926756352765322
-0.20926756352765322 x 100 = -20.93%