-49.88% is the change from 856 to 429
Calculation steps:
[( 429 - 856 ) ÷ 856] x 100 = -49.88%
Formula
Percentage change = [(429 - 856) / 856] x 100
Subtract the new number by the original number
429 - 856 = -427
-427 ÷ 856 = -0.49883177570093457
-0.49883177570093457 x 100 = -49.88%