-20.85% is the change from 422 to 334
Calculation steps:
[( 334 - 422 ) ÷ 422] x 100 = -20.85%
Formula
Percentage change = [(334 - 422) / 422] x 100
Subtract the new number by the original number
334 - 422 = -88
-88 ÷ 422 = -0.20853080568720378
-0.20853080568720378 x 100 = -20.85%