278.6% is the change from 243 to 920
Calculation steps:
[( 920 - 243 ) ÷ 243] x 100 = 278.6%
Formula
Percentage change = [(920 - 243) / 243] x 100
Subtract the new number by the original number
920 - 243 = 677
677 ÷ 243 = 2.786008230452675
2.786008230452675 x 100 = 278.6%