800% is the change from 39 to 351
Calculation steps:
[( 351 - 39 ) ÷ 39] x 100 = 800%
Formula
Percentage change = [(351 - 39) / 39] x 100
Subtract the new number by the original number
351 - 39 = 312
312 ÷ 39 = 8
8 x 100 = 800%
Example