421.95% is the change from 82 to 428
Calculation steps:
[( 428 - 82 ) ÷ 82] x 100 = 421.95%
Formula
Percentage change = [(428 - 82) / 82] x 100
Subtract the new number by the original number
428 - 82 = 346
346 ÷ 82 = 4.219512195121951
4.219512195121951 x 100 = 421.95%