274.9% is the change from 243 to 911
Calculation steps:
[( 911 - 243 ) ÷ 243] x 100 = 274.9%
Formula
Percentage change = [(911 - 243) / 243] x 100
Subtract the new number by the original number
911 - 243 = 668
668 ÷ 243 = 2.748971193415638
2.748971193415638 x 100 = 274.9%