275.73% is the change from 103 to 387
Calculation steps:
[( 387 - 103 ) ÷ 103] x 100 = 275.73%
Formula
Percentage change = [(387 - 103) / 103] x 100
Subtract the new number by the original number
387 - 103 = 284
284 ÷ 103 = 2.7572815533980584
2.7572815533980584 x 100 = 275.73%