51.15% is the change from 655 to 990
Calculation steps:
[( 990 - 655 ) ÷ 655] x 100 = 51.15%
Formula
Percentage change = [(990 - 655) / 655] x 100
Subtract the new number by the original number
990 - 655 = 335
335 ÷ 655 = 0.5114503816793893
0.5114503816793893 x 100 = 51.15%