-43.49% is the change from 899 to 508
Calculation steps:
[( 508 - 899 ) ÷ 899] x 100 = -43.49%
Formula
Percentage change = [(508 - 899) / 899] x 100
Subtract the new number by the original number
508 - 899 = -391
-391 ÷ 899 = -0.43492769744160176
-0.43492769744160176 x 100 = -43.49%