525% is the change from 64 to 400
Calculation steps:
[( 400 - 64 ) ÷ 64] x 100 = 525%
Formula
Percentage change = [(400 - 64) / 64] x 100
Subtract the new number by the original number
400 - 64 = 336
336 ÷ 64 = 5.25
5.25 x 100 = 525%
Example