242.92% is the change from 240 to 823
Calculation steps:
[( 823 - 240 ) ÷ 240] x 100 = 242.92%
Formula
Percentage change = [(823 - 240) / 240] x 100
Subtract the new number by the original number
823 - 240 = 583
583 ÷ 240 = 2.4291666666666667
2.4291666666666667 x 100 = 242.92%