-94.76% is the change from 420 to 22
Calculation steps:
[( 22 - 420 ) ÷ 420] x 100 = -94.76%
Formula
Percentage change = [(22 - 420) / 420] x 100
Subtract the new number by the original number
22 - 420 = -398
-398 ÷ 420 = -0.9476190476190476
-0.9476190476190476 x 100 = -94.76%