-92.96% is the change from 866 to 61
Calculation steps:
[( 61 - 866 ) ÷ 866] x 100 = -92.96%
Formula
Percentage change = [(61 - 866) / 866] x 100
Subtract the new number by the original number
61 - 866 = -805
-805 ÷ 866 = -0.9295612009237876
-0.9295612009237876 x 100 = -92.96%