92% is the change from 400 to 768
Calculation steps:
[( 768 - 400 ) ÷ 400] x 100 = 92%
Formula
Percentage change = [(768 - 400) / 400] x 100
Subtract the new number by the original number
768 - 400 = 368
368 ÷ 400 = 0.92
0.92 x 100 = 92%
Example