2570% is the change from 20 to 534
Calculation steps:
[( 534 - 20 ) ÷ 20] x 100 = 2570%
Formula
Percentage change = [(534 - 20) / 20] x 100
Subtract the new number by the original number
534 - 20 = 514
514 ÷ 20 = 25.7
25.7 x 100 = 2570%
Example