-92.9% is the change from 310 to 22
Calculation steps:
[( 22 - 310 ) ÷ 310] x 100 = -92.9%
Formula
Percentage change = [(22 - 310) / 310] x 100
Subtract the new number by the original number
22 - 310 = -288
-288 ÷ 310 = -0.9290322580645162
-0.9290322580645162 x 100 = -92.9%