-74.97% is the change from 991 to 248
Calculation steps:
[( 248 - 991 ) ÷ 991] x 100 = -74.97%
Formula
Percentage change = [(248 - 991) / 991] x 100
Subtract the new number by the original number
248 - 991 = -743
-743 ÷ 991 = -0.7497477295660948
-0.7497477295660948 x 100 = -74.97%