297.06% is the change from 102 to 405
Calculation steps:
[( 405 - 102 ) ÷ 102] x 100 = 297.06%
Formula
Percentage change = [(405 - 102) / 102] x 100
Subtract the new number by the original number
405 - 102 = 303
303 ÷ 102 = 2.9705882352941178
2.9705882352941178 x 100 = 297.06%