534.38% is the change from 64 to 406
Calculation steps:
[( 406 - 64 ) ÷ 64] x 100 = 534.38%
Formula
Percentage change = [(406 - 64) / 64] x 100
Subtract the new number by the original number
406 - 64 = 342
342 ÷ 64 = 5.34375
5.34375 x 100 = 534.38%
Example