-21.62% is the change from 495 to 388
Calculation steps:
[( 388 - 495 ) ÷ 495] x 100 = -21.62%
Formula
Percentage change = [(388 - 495) / 495] x 100
Subtract the new number by the original number
388 - 495 = -107
-107 ÷ 495 = -0.21616161616161617
-0.21616161616161617 x 100 = -21.62%