-63.47% is the change from 876 to 320
Calculation steps:
[( 320 - 876 ) ÷ 876] x 100 = -63.47%
Formula
Percentage change = [(320 - 876) / 876] x 100
Subtract the new number by the original number
320 - 876 = -556
-556 ÷ 876 = -0.634703196347032
-0.634703196347032 x 100 = -63.47%