248.04% is the change from 102 to 355
Calculation steps:
[( 355 - 102 ) ÷ 102] x 100 = 248.04%
Formula
Percentage change = [(355 - 102) / 102] x 100
Subtract the new number by the original number
355 - 102 = 253
253 ÷ 102 = 2.480392156862745
2.480392156862745 x 100 = 248.04%