887.1% is the change from 31 to 306
Calculation steps:
[( 306 - 31 ) ÷ 31] x 100 = 887.1%
Formula
Percentage change = [(306 - 31) / 31] x 100
Subtract the new number by the original number
306 - 31 = 275
275 ÷ 31 = 8.870967741935484
8.870967741935484 x 100 = 887.1%