-64.38% is the change from 817 to 291
Calculation steps:
[( 291 - 817 ) ÷ 817] x 100 = -64.38%
Formula
Percentage change = [(291 - 817) / 817] x 100
Subtract the new number by the original number
291 - 817 = -526
-526 ÷ 817 = -0.6438188494492044
-0.6438188494492044 x 100 = -64.38%