88.73% is the change from 408 to 770
Calculation steps:
[( 770 - 408 ) ÷ 408] x 100 = 88.73%
Formula
Percentage change = [(770 - 408) / 408] x 100
Subtract the new number by the original number
770 - 408 = 362
362 ÷ 408 = 0.8872549019607843
0.8872549019607843 x 100 = 88.73%