489.06% is the change from 64 to 377
Calculation steps:
[( 377 - 64 ) ÷ 64] x 100 = 489.06%
Formula
Percentage change = [(377 - 64) / 64] x 100
Subtract the new number by the original number
377 - 64 = 313
313 ÷ 64 = 4.890625
4.890625 x 100 = 489.06%