-97.35% is the change from 830 to 22
Calculation steps:
[( 22 - 830 ) ÷ 830] x 100 = -97.35%
Formula
Percentage change = [(22 - 830) / 830] x 100
Subtract the new number by the original number
22 - 830 = -808
-808 ÷ 830 = -0.9734939759036144
-0.9734939759036144 x 100 = -97.35%