-97.73% is the change from 528 to 12
Calculation steps:
[( 12 - 528 ) ÷ 528] x 100 = -97.73%
Formula
Percentage change = [(12 - 528) / 528] x 100
Subtract the new number by the original number
12 - 528 = -516
-516 ÷ 528 = -0.9772727272727273
-0.9772727272727273 x 100 = -97.73%