309.05% is the change from 243 to 994
Calculation steps:
[( 994 - 243 ) ÷ 243] x 100 = 309.05%
Formula
Percentage change = [(994 - 243) / 243] x 100
Subtract the new number by the original number
994 - 243 = 751
751 ÷ 243 = 3.090534979423868
3.090534979423868 x 100 = 309.05%