1776.19% is the change from 21 to 394
Calculation steps:
[( 394 - 21 ) ÷ 21] x 100 = 1776.19%
Formula
Percentage change = [(394 - 21) / 21] x 100
Subtract the new number by the original number
394 - 21 = 373
373 ÷ 21 = 17.761904761904763
17.761904761904763 x 100 = 1776.19%