-69.93% is the change from 409 to 123
Calculation steps:
[( 123 - 409 ) ÷ 409] x 100 = -69.93%
Formula
Percentage change = [(123 - 409) / 409] x 100
Subtract the new number by the original number
123 - 409 = -286
-286 ÷ 409 = -0.6992665036674817
-0.6992665036674817 x 100 = -69.93%