-19.46% is the change from 817 to 658
Calculation steps:
[( 658 - 817 ) ÷ 817] x 100 = -19.46%
Formula
Percentage change = [(658 - 817) / 817] x 100
Subtract the new number by the original number
658 - 817 = -159
-159 ÷ 817 = -0.19461444308445533
-0.19461444308445533 x 100 = -19.46%