-51.55% is the change from 869 to 421
Calculation steps:
[( 421 - 869 ) ÷ 869] x 100 = -51.55%
Formula
Percentage change = [(421 - 869) / 869] x 100
Subtract the new number by the original number
421 - 869 = -448
-448 ÷ 869 = -0.5155350978135789
-0.5155350978135789 x 100 = -51.55%