-21.8% is the change from 211 to 165
Calculation steps:
[( 165 - 211 ) ÷ 211] x 100 = -21.8%
Formula
Percentage change = [(165 - 211) / 211] x 100
Subtract the new number by the original number
165 - 211 = -46
-46 ÷ 211 = -0.21800947867298578
-0.21800947867298578 x 100 = -21.8%