-1.62% is the change from 866 to 852
Calculation steps:
[( 852 - 866 ) ÷ 866] x 100 = -1.62%
Formula
Percentage change = [(852 - 866) / 866] x 100
Subtract the new number by the original number
852 - 866 = -14
-14 ÷ 866 = -0.016166281755196306
-0.016166281755196306 x 100 = -1.62%