-51.89% is the change from 875 to 421
Calculation steps:
[( 421 - 875 ) ÷ 875] x 100 = -51.89%
Formula
Percentage change = [(421 - 875) / 875] x 100
Subtract the new number by the original number
421 - 875 = -454
-454 ÷ 875 = -0.5188571428571429
-0.5188571428571429 x 100 = -51.89%