241.85% is the change from 270 to 923
Calculation steps:
[( 923 - 270 ) ÷ 270] x 100 = 241.85%
Formula
Percentage change = [(923 - 270) / 270] x 100
Subtract the new number by the original number
923 - 270 = 653
653 ÷ 270 = 2.4185185185185185
2.4185185185185185 x 100 = 241.85%