-38.57% is the change from 827 to 508
Calculation steps:
[( 508 - 827 ) ÷ 827] x 100 = -38.57%
Formula
Percentage change = [(508 - 827) / 827] x 100
Subtract the new number by the original number
508 - 827 = -319
-319 ÷ 827 = -0.3857315598548972
-0.3857315598548972 x 100 = -38.57%