268.81% is the change from 109 to 402
Calculation steps:
[( 402 - 109 ) ÷ 109] x 100 = 268.81%
Formula
Percentage change = [(402 - 109) / 109] x 100
Subtract the new number by the original number
402 - 109 = 293
293 ÷ 109 = 2.688073394495413
2.688073394495413 x 100 = 268.81%