-55.82% is the change from 550 to 243
Calculation steps:
[( 243 - 550 ) ÷ 550] x 100 = -55.82%
Formula
Percentage change = [(243 - 550) / 550] x 100
Subtract the new number by the original number
243 - 550 = -307
-307 ÷ 550 = -0.5581818181818182
-0.5581818181818182 x 100 = -55.82%