-76.36% is the change from 990 to 234
Calculation steps:
[( 234 - 990 ) ÷ 990] x 100 = -76.36%
Formula
Percentage change = [(234 - 990) / 990] x 100
Subtract the new number by the original number
234 - 990 = -756
-756 ÷ 990 = -0.7636363636363637
-0.7636363636363637 x 100 = -76.36%