-22.83% is the change from 508 to 392
Calculation steps:
[( 392 - 508 ) ÷ 508] x 100 = -22.83%
Formula
Percentage change = [(392 - 508) / 508] x 100
Subtract the new number by the original number
392 - 508 = -116
-116 ÷ 508 = -0.2283464566929134
-0.2283464566929134 x 100 = -22.83%