-52.5% is the change from 899 to 427
Calculation steps:
[( 427 - 899 ) ÷ 899] x 100 = -52.5%
Formula
Percentage change = [(427 - 899) / 899] x 100
Subtract the new number by the original number
427 - 899 = -472
-472 ÷ 899 = -0.525027808676307
-0.525027808676307 x 100 = -52.5%