-26.56% is the change from 817 to 600
Calculation steps:
[( 600 - 817 ) ÷ 817] x 100 = -26.56%
Formula
Percentage change = [(600 - 817) / 817] x 100
Subtract the new number by the original number
600 - 817 = -217
-217 ÷ 817 = -0.26560587515299877
-0.26560587515299877 x 100 = -26.56%