-17.65% is the change from 646 to 532
Calculation steps:
[( 532 - 646 ) ÷ 646] x 100 = -17.65%
Formula
Percentage change = [(532 - 646) / 646] x 100
Subtract the new number by the original number
532 - 646 = -114
-114 ÷ 646 = -0.17647058823529413
-0.17647058823529413 x 100 = -17.65%