503.66% is the change from 164 to 990
Calculation steps:
[( 990 - 164 ) ÷ 164] x 100 = 503.66%
Formula
Percentage change = [(990 - 164) / 164] x 100
Subtract the new number by the original number
990 - 164 = 826
826 ÷ 164 = 5.036585365853658
5.036585365853658 x 100 = 503.66%