-52.39% is the change from 817 to 389
Calculation steps:
[( 389 - 817 ) ÷ 817] x 100 = -52.39%
Formula
Percentage change = [(389 - 817) / 817] x 100
Subtract the new number by the original number
389 - 817 = -428
-428 ÷ 817 = -0.5238678090575275
-0.5238678090575275 x 100 = -52.39%