111.57% is the change from 242 to 512
Calculation steps:
[( 512 - 242 ) ÷ 242] x 100 = 111.57%
Formula
Percentage change = [(512 - 242) / 242] x 100
Subtract the new number by the original number
512 - 242 = 270
270 ÷ 242 = 1.115702479338843
1.115702479338843 x 100 = 111.57%