-70.79% is the change from 866 to 253
Calculation steps:
[( 253 - 866 ) ÷ 866] x 100 = -70.79%
Formula
Percentage change = [(253 - 866) / 866] x 100
Subtract the new number by the original number
253 - 866 = -613
-613 ÷ 866 = -0.707852193995381
-0.707852193995381 x 100 = -70.79%