549.38% is the change from 81 to 526
Calculation steps:
[( 526 - 81 ) ÷ 81] x 100 = 549.38%
Formula
Percentage change = [(526 - 81) / 81] x 100
Subtract the new number by the original number
526 - 81 = 445
445 ÷ 81 = 5.493827160493828
5.493827160493828 x 100 = 549.38%