-15.55% is the change from 508 to 429
Calculation steps:
[( 429 - 508 ) ÷ 508] x 100 = -15.55%
Formula
Percentage change = [(429 - 508) / 508] x 100
Subtract the new number by the original number
429 - 508 = -79
-79 ÷ 508 = -0.15551181102362205
-0.15551181102362205 x 100 = -15.55%