-21.57% is the change from 853 to 669
Calculation steps:
[( 669 - 853 ) ÷ 853] x 100 = -21.57%
Formula
Percentage change = [(669 - 853) / 853] x 100
Subtract the new number by the original number
669 - 853 = -184
-184 ÷ 853 = -0.21570926143024619
-0.21570926143024619 x 100 = -21.57%