-30.62% is the change from 209 to 145
Calculation steps:
[( 145 - 209 ) ÷ 209] x 100 = -30.62%
Formula
Percentage change = [(145 - 209) / 209] x 100
Subtract the new number by the original number
145 - 209 = -64
-64 ÷ 209 = -0.3062200956937799
-0.3062200956937799 x 100 = -30.62%