-61.51% is the change from 543 to 209
Calculation steps:
[( 209 - 543 ) ÷ 543] x 100 = -61.51%
Formula
Percentage change = [(209 - 543) / 543] x 100
Subtract the new number by the original number
209 - 543 = -334
-334 ÷ 543 = -0.6151012891344383
-0.6151012891344383 x 100 = -61.51%