2447.62% is the change from 21 to 535
Calculation steps:
[( 535 - 21 ) ÷ 21] x 100 = 2447.62%
Formula
Percentage change = [(535 - 21) / 21] x 100
Subtract the new number by the original number
535 - 21 = 514
514 ÷ 21 = 24.476190476190474
24.476190476190474 x 100 = 2447.62%