-97.72% is the change from 526 to 12
Calculation steps:
[( 12 - 526 ) ÷ 526] x 100 = -97.72%
Formula
Percentage change = [(12 - 526) / 526] x 100
Subtract the new number by the original number
12 - 526 = -514
-514 ÷ 526 = -0.9771863117870723
-0.9771863117870723 x 100 = -97.72%