143.3% is the change from 321 to 781
Calculation steps:
[( 781 - 321 ) ÷ 321] x 100 = 143.3%
Formula
Percentage change = [(781 - 321) / 321] x 100
Subtract the new number by the original number
781 - 321 = 460
460 ÷ 321 = 1.4330218068535825
1.4330218068535825 x 100 = 143.3%