850% is the change from 6 to 57
Calculation steps:
[( 57 - 6 ) ÷ 6] x 100 = 850%
Formula
Percentage change = [(57 - 6) / 6] x 100
Subtract the new number by the original number
57 - 6 = 51
51 ÷ 6 = 8.5
8.5 x 100 = 850%
Example