-71.99% is the change from 914 to 256
Calculation steps:
[( 256 - 914 ) ÷ 914] x 100 = -71.99%
Formula
Percentage change = [(256 - 914) / 914] x 100
Subtract the new number by the original number
256 - 914 = -658
-658 ÷ 914 = -0.7199124726477024
-0.7199124726477024 x 100 = -71.99%