90% is the change from 480 to 912
Calculation steps:
[( 912 - 480 ) ÷ 480] x 100 = 90%
Formula
Percentage change = [(912 - 480) / 480] x 100
Subtract the new number by the original number
912 - 480 = 432
432 ÷ 480 = 0.9
0.9 x 100 = 90%
Example