-22.72% is the change from 867 to 670
Calculation steps:
[( 670 - 867 ) ÷ 867] x 100 = -22.72%
Formula
Percentage change = [(670 - 867) / 867] x 100
Subtract the new number by the original number
670 - 867 = -197
-197 ÷ 867 = -0.22722029988465975
-0.22722029988465975 x 100 = -22.72%