-22.07% is the change from 213 to 166
Calculation steps:
[( 166 - 213 ) ÷ 213] x 100 = -22.07%
Formula
Percentage change = [(166 - 213) / 213] x 100
Subtract the new number by the original number
166 - 213 = -47
-47 ÷ 213 = -0.22065727699530516
-0.22065727699530516 x 100 = -22.07%