187.58% is the change from 306 to 880
Calculation steps:
[( 880 - 306 ) ÷ 306] x 100 = 187.58%
Formula
Percentage change = [(880 - 306) / 306] x 100
Subtract the new number by the original number
880 - 306 = 574
574 ÷ 306 = 1.8758169934640523
1.8758169934640523 x 100 = 187.58%