-92.67% is the change from 873 to 64
Calculation steps:
[( 64 - 873 ) ÷ 873] x 100 = -92.67%
Formula
Percentage change = [(64 - 873) / 873] x 100
Subtract the new number by the original number
64 - 873 = -809
-809 ÷ 873 = -0.9266895761741123
-0.9266895761741123 x 100 = -92.67%