-97.77% is the change from 538 to 12
Calculation steps:
[( 12 - 538 ) ÷ 538] x 100 = -97.77%
Formula
Percentage change = [(12 - 538) / 538] x 100
Subtract the new number by the original number
12 - 538 = -526
-526 ÷ 538 = -0.9776951672862454
-0.9776951672862454 x 100 = -97.77%