-72.25% is the change from 919 to 255
Calculation steps:
[( 255 - 919 ) ÷ 919] x 100 = -72.25%
Formula
Percentage change = [(255 - 919) / 919] x 100
Subtract the new number by the original number
255 - 919 = -664
-664 ÷ 919 = -0.7225244831338411
-0.7225244831338411 x 100 = -72.25%