-75.23% is the change from 868 to 215
Calculation steps:
[( 215 - 868 ) ÷ 868] x 100 = -75.23%
Formula
Percentage change = [(215 - 868) / 868] x 100
Subtract the new number by the original number
215 - 868 = -653
-653 ÷ 868 = -0.7523041474654378
-0.7523041474654378 x 100 = -75.23%