-93.9% is the change from 213 to 13
Calculation steps:
[( 13 - 213 ) ÷ 213] x 100 = -93.9%
Formula
Percentage change = [(13 - 213) / 213] x 100
Subtract the new number by the original number
13 - 213 = -200
-200 ÷ 213 = -0.9389671361502347
-0.9389671361502347 x 100 = -93.9%