-13.58% is the change from 243 to 210
Calculation steps:
[( 210 - 243 ) ÷ 243] x 100 = -13.58%
Formula
Percentage change = [(210 - 243) / 243] x 100
Subtract the new number by the original number
210 - 243 = -33
-33 ÷ 243 = -0.13580246913580246
-0.13580246913580246 x 100 = -13.58%