-74.95% is the change from 990 to 248
Calculation steps:
[( 248 - 990 ) ÷ 990] x 100 = -74.95%
Formula
Percentage change = [(248 - 990) / 990] x 100
Subtract the new number by the original number
248 - 990 = -742
-742 ÷ 990 = -0.7494949494949495
-0.7494949494949495 x 100 = -74.95%