-54.09% is the change from 501 to 230
Calculation steps:
[( 230 - 501 ) ÷ 501] x 100 = -54.09%
Formula
Percentage change = [(230 - 501) / 501] x 100
Subtract the new number by the original number
230 - 501 = -271
-271 ÷ 501 = -0.5409181636726547
-0.5409181636726547 x 100 = -54.09%