-20.12% is the change from 666 to 532
Calculation steps:
[( 532 - 666 ) ÷ 666] x 100 = -20.12%
Formula
Percentage change = [(532 - 666) / 666] x 100
Subtract the new number by the original number
532 - 666 = -134
-134 ÷ 666 = -0.2012012012012012
-0.2012012012012012 x 100 = -20.12%