-50.63% is the change from 869 to 429
Calculation steps:
[( 429 - 869 ) ÷ 869] x 100 = -50.63%
Formula
Percentage change = [(429 - 869) / 869] x 100
Subtract the new number by the original number
429 - 869 = -440
-440 ÷ 869 = -0.5063291139240507
-0.5063291139240507 x 100 = -50.63%