-8.57% is the change from 817 to 747
Calculation steps:
[( 747 - 817 ) ÷ 817] x 100 = -8.57%
Formula
Percentage change = [(747 - 817) / 817] x 100
Subtract the new number by the original number
747 - 817 = -70
-70 ÷ 817 = -0.08567931456548347
-0.08567931456548347 x 100 = -8.57%