-85.15% is the change from 202 to 30
Calculation steps:
[( 30 - 202 ) ÷ 202] x 100 = -85.15%
Formula
Percentage change = [(30 - 202) / 202] x 100
Subtract the new number by the original number
30 - 202 = -172
-172 ÷ 202 = -0.8514851485148515
-0.8514851485148515 x 100 = -85.15%