20.33% is the change from 664 to 799
Calculation steps:
[( 799 - 664 ) ÷ 664] x 100 = 20.33%
Formula
Percentage change = [(799 - 664) / 664] x 100
Subtract the new number by the original number
799 - 664 = 135
135 ÷ 664 = 0.2033132530120482
0.2033132530120482 x 100 = 20.33%