82.2% is the change from 427 to 778
Calculation steps:
[( 778 - 427 ) ÷ 427] x 100 = 82.2%
Formula
Percentage change = [(778 - 427) / 427] x 100
Subtract the new number by the original number
778 - 427 = 351
351 ÷ 427 = 0.8220140515222483
0.8220140515222483 x 100 = 82.2%