-42.13% is the change from 508 to 294
Calculation steps:
[( 294 - 508 ) ÷ 508] x 100 = -42.13%
Formula
Percentage change = [(294 - 508) / 508] x 100
Subtract the new number by the original number
294 - 508 = -214
-214 ÷ 508 = -0.421259842519685
-0.421259842519685 x 100 = -42.13%