143.13% is the change from 320 to 778
Calculation steps:
[( 778 - 320 ) ÷ 320] x 100 = 143.13%
Formula
Percentage change = [(778 - 320) / 320] x 100
Subtract the new number by the original number
778 - 320 = 458
458 ÷ 320 = 1.43125
1.43125 x 100 = 143.13%