-97.78% is the change from 541 to 12
Calculation steps:
[( 12 - 541 ) ÷ 541] x 100 = -97.78%
Formula
Percentage change = [(12 - 541) / 541] x 100
Subtract the new number by the original number
12 - 541 = -529
-529 ÷ 541 = -0.977818853974122
-0.977818853974122 x 100 = -97.78%