-31.66% is the change from 319 to 218
Calculation steps:
[( 218 - 319 ) ÷ 319] x 100 = -31.66%
Formula
Percentage change = [(218 - 319) / 319] x 100
Subtract the new number by the original number
218 - 319 = -101
-101 ÷ 319 = -0.3166144200626959
-0.3166144200626959 x 100 = -31.66%