-67.52% is the change from 508 to 165
Calculation steps:
[( 165 - 508 ) ÷ 508] x 100 = -67.52%
Formula
Percentage change = [(165 - 508) / 508] x 100
Subtract the new number by the original number
165 - 508 = -343
-343 ÷ 508 = -0.6751968503937008
-0.6751968503937008 x 100 = -67.52%