-39.75% is the change from 868 to 523
Calculation steps:
[( 523 - 868 ) ÷ 868] x 100 = -39.75%
Formula
Percentage change = [(523 - 868) / 868] x 100
Subtract the new number by the original number
523 - 868 = -345
-345 ÷ 868 = -0.39746543778801846
-0.39746543778801846 x 100 = -39.75%
Example