-74.16% is the change from 987 to 255
Calculation steps:
[( 255 - 987 ) ÷ 987] x 100 = -74.16%
Formula
Percentage change = [(255 - 987) / 987] x 100
Subtract the new number by the original number
255 - 987 = -732
-732 ÷ 987 = -0.7416413373860182
-0.7416413373860182 x 100 = -74.16%