247.72% is the change from 285 to 991
Calculation steps:
[( 991 - 285 ) ÷ 285] x 100 = 247.72%
Formula
Percentage change = [(991 - 285) / 285] x 100
Subtract the new number by the original number
991 - 285 = 706
706 ÷ 285 = 2.4771929824561405
2.4771929824561405 x 100 = 247.72%