284.38% is the change from 64 to 246
Calculation steps:
[( 246 - 64 ) ÷ 64] x 100 = 284.38%
Formula
Percentage change = [(246 - 64) / 64] x 100
Subtract the new number by the original number
246 - 64 = 182
182 ÷ 64 = 2.84375
2.84375 x 100 = 284.38%
Example