255.14% is the change from 243 to 863
Calculation steps:
[( 863 - 243 ) ÷ 243] x 100 = 255.14%
Formula
Percentage change = [(863 - 243) / 243] x 100
Subtract the new number by the original number
863 - 243 = 620
620 ÷ 243 = 2.551440329218107
2.551440329218107 x 100 = 255.14%