-84.6% is the change from 422 to 65
Calculation steps:
[( 65 - 422 ) ÷ 422] x 100 = -84.6%
Formula
Percentage change = [(65 - 422) / 422] x 100
Subtract the new number by the original number
65 - 422 = -357
-357 ÷ 422 = -0.8459715639810427
-0.8459715639810427 x 100 = -84.6%