400% is the change from 192 to 960
Calculation steps:
[( 960 - 192 ) ÷ 192] x 100 = 400%
Formula
Percentage change = [(960 - 192) / 192] x 100
Subtract the new number by the original number
960 - 192 = 768
768 ÷ 192 = 4
4 x 100 = 400%
Example