177.5% is the change from 360 to 999
Calculation steps:
[( 999 - 360 ) ÷ 360] x 100 = 177.5%
Formula
Percentage change = [(999 - 360) / 360] x 100
Subtract the new number by the original number
999 - 360 = 639
639 ÷ 360 = 1.775
1.775 x 100 = 177.5%
Example