-15.64% is the change from 211 to 178
Calculation steps:
[( 178 - 211 ) ÷ 211] x 100 = -15.64%
Formula
Percentage change = [(178 - 211) / 211] x 100
Subtract the new number by the original number
178 - 211 = -33
-33 ÷ 211 = -0.15639810426540285
-0.15639810426540285 x 100 = -15.64%