12800% is the change from 5 to 645
Calculation steps:
[( 645 - 5 ) ÷ 5] x 100 = 12800%
Formula
Percentage change = [(645 - 5) / 5] x 100
Subtract the new number by the original number
645 - 5 = 640
640 ÷ 5 = 128
128 x 100 = 12800%
Example