2445.45% is the change from 11 to 280
Calculation steps:
[( 280 - 11 ) ÷ 11] x 100 = 2445.45%
Formula
Percentage change = [(280 - 11) / 11] x 100
Subtract the new number by the original number
280 - 11 = 269
269 ÷ 11 = 24.454545454545453
24.454545454545453 x 100 = 2445.45%