-64.01% is the change from 867 to 312
Calculation steps:
[( 312 - 867 ) ÷ 867] x 100 = -64.01%
Formula
Percentage change = [(312 - 867) / 867] x 100
Subtract the new number by the original number
312 - 867 = -555
-555 ÷ 867 = -0.6401384083044983
-0.6401384083044983 x 100 = -64.01%