-81.99% is the change from 211 to 38
Calculation steps:
[( 38 - 211 ) ÷ 211] x 100 = -81.99%
Formula
Percentage change = [(38 - 211) / 211] x 100
Subtract the new number by the original number
38 - 211 = -173
-173 ÷ 211 = -0.8199052132701422
-0.8199052132701422 x 100 = -81.99%