-20.72% is the change from 671 to 532
Calculation steps:
[( 532 - 671 ) ÷ 671] x 100 = -20.72%
Formula
Percentage change = [(532 - 671) / 671] x 100
Subtract the new number by the original number
532 - 671 = -139
-139 ÷ 671 = -0.20715350223546944
-0.20715350223546944 x 100 = -20.72%