-50.11% is the change from 437 to 218
Calculation steps:
[( 218 - 437 ) ÷ 437] x 100 = -50.11%
Formula
Percentage change = [(218 - 437) / 437] x 100
Subtract the new number by the original number
218 - 437 = -219
-219 ÷ 437 = -0.5011441647597255
-0.5011441647597255 x 100 = -50.11%