427.16% is the change from 81 to 427
Calculation steps:
[( 427 - 81 ) ÷ 81] x 100 = 427.16%
Formula
Percentage change = [(427 - 81) / 81] x 100
Subtract the new number by the original number
427 - 81 = 346
346 ÷ 81 = 4.271604938271605
4.271604938271605 x 100 = 427.16%