-70.9% is the change from 897 to 261
Calculation steps:
[( 261 - 897 ) ÷ 897] x 100 = -70.9%
Formula
Percentage change = [(261 - 897) / 897] x 100
Subtract the new number by the original number
261 - 897 = -636
-636 ÷ 897 = -0.7090301003344481
-0.7090301003344481 x 100 = -70.9%