101.23% is the change from 405 to 815
Calculation steps:
[( 815 - 405 ) ÷ 405] x 100 = 101.23%
Formula
Percentage change = [(815 - 405) / 405] x 100
Subtract the new number by the original number
815 - 405 = 410
410 ÷ 405 = 1.0123456790123457
1.0123456790123457 x 100 = 101.23%