16650% is the change from 4 to 670
Calculation steps:
[( 670 - 4 ) ÷ 4] x 100 = 16650%
Formula
Percentage change = [(670 - 4) / 4] x 100
Subtract the new number by the original number
670 - 4 = 666
666 ÷ 4 = 166.5
166.5 x 100 = 16650%
Example