-49.08% is the change from 870 to 443
Calculation steps:
[( 443 - 870 ) ÷ 870] x 100 = -49.08%
Formula
Percentage change = [(443 - 870) / 870] x 100
Subtract the new number by the original number
443 - 870 = -427
-427 ÷ 870 = -0.4908045977011494
-0.4908045977011494 x 100 = -49.08%