91.54% is the change from 402 to 770
Calculation steps:
[( 770 - 402 ) ÷ 402] x 100 = 91.54%
Formula
Percentage change = [(770 - 402) / 402] x 100
Subtract the new number by the original number
770 - 402 = 368
368 ÷ 402 = 0.9154228855721394
0.9154228855721394 x 100 = 91.54%