-67.27% is the change from 501 to 164
Calculation steps:
[( 164 - 501 ) ÷ 501] x 100 = -67.27%
Formula
Percentage change = [(164 - 501) / 501] x 100
Subtract the new number by the original number
164 - 501 = -337
-337 ÷ 501 = -0.6726546906187625
-0.6726546906187625 x 100 = -67.27%