-72.1% is the change from 914 to 255
Calculation steps:
[( 255 - 914 ) ÷ 914] x 100 = -72.1%
Formula
Percentage change = [(255 - 914) / 914] x 100
Subtract the new number by the original number
255 - 914 = -659
-659 ÷ 914 = -0.7210065645514223
-0.7210065645514223 x 100 = -72.1%