-9.36% is the change from 897 to 813
Calculation steps:
[( 813 - 897 ) ÷ 897] x 100 = -9.36%
Formula
Percentage change = [(813 - 897) / 897] x 100
Subtract the new number by the original number
813 - 897 = -84
-84 ÷ 897 = -0.09364548494983277
-0.09364548494983277 x 100 = -9.36%