90.12% is the change from 405 to 770
Calculation steps:
[( 770 - 405 ) ÷ 405] x 100 = 90.12%
Formula
Percentage change = [(770 - 405) / 405] x 100
Subtract the new number by the original number
770 - 405 = 365
365 ÷ 405 = 0.9012345679012346
0.9012345679012346 x 100 = 90.12%