670% is the change from 50 to 385
Calculation steps:
[( 385 - 50 ) ÷ 50] x 100 = 670%
Formula
Percentage change = [(385 - 50) / 50] x 100
Subtract the new number by the original number
385 - 50 = 335
335 ÷ 50 = 6.7
6.7 x 100 = 670%
Example