-39.18% is the change from 878 to 534
Calculation steps:
[( 534 - 878 ) ÷ 878] x 100 = -39.18%
Formula
Percentage change = [(534 - 878) / 878] x 100
Subtract the new number by the original number
534 - 878 = -344
-344 ÷ 878 = -0.3917995444191344
-0.3917995444191344 x 100 = -39.18%