1639.13% is the change from 23 to 400
Calculation steps:
[( 400 - 23 ) ÷ 23] x 100 = 1639.13%
Formula
Percentage change = [(400 - 23) / 23] x 100
Subtract the new number by the original number
400 - 23 = 377
377 ÷ 23 = 16.391304347826086
16.391304347826086 x 100 = 1639.13%