-54.76% is the change from 871 to 394
Calculation steps:
[( 394 - 871 ) ÷ 871] x 100 = -54.76%
Formula
Percentage change = [(394 - 871) / 871] x 100
Subtract the new number by the original number
394 - 871 = -477
-477 ÷ 871 = -0.547646383467279
-0.547646383467279 x 100 = -54.76%