-72.22% is the change from 990 to 275
Calculation steps:
[( 275 - 990 ) ÷ 990] x 100 = -72.22%
Formula
Percentage change = [(275 - 990) / 990] x 100
Subtract the new number by the original number
275 - 990 = -715
-715 ÷ 990 = -0.7222222222222222
-0.7222222222222222 x 100 = -72.22%