603.64% is the change from 55 to 387
Calculation steps:
[( 387 - 55 ) ÷ 55] x 100 = 603.64%
Formula
Percentage change = [(387 - 55) / 55] x 100
Subtract the new number by the original number
387 - 55 = 332
332 ÷ 55 = 6.036363636363636
6.036363636363636 x 100 = 603.64%