-54.53% is the change from 508 to 231
Calculation steps:
[( 231 - 508 ) ÷ 508] x 100 = -54.53%
Formula
Percentage change = [(231 - 508) / 508] x 100
Subtract the new number by the original number
231 - 508 = -277
-277 ÷ 508 = -0.5452755905511811
-0.5452755905511811 x 100 = -54.53%