-68.11% is the change from 809 to 258
Calculation steps:
[( 258 - 809 ) ÷ 809] x 100 = -68.11%
Formula
Percentage change = [(258 - 809) / 809] x 100
Subtract the new number by the original number
258 - 809 = -551
-551 ÷ 809 = -0.681087762669963
-0.681087762669963 x 100 = -68.11%