242.16% is the change from 102 to 349
Calculation steps:
[( 349 - 102 ) ÷ 102] x 100 = 242.16%
Formula
Percentage change = [(349 - 102) / 102] x 100
Subtract the new number by the original number
349 - 102 = 247
247 ÷ 102 = 2.4215686274509802
2.4215686274509802 x 100 = 242.16%