870% is the change from 20 to 194
Calculation steps:
[( 194 - 20 ) ÷ 20] x 100 = 870%
Formula
Percentage change = [(194 - 20) / 20] x 100
Subtract the new number by the original number
194 - 20 = 174
174 ÷ 20 = 8.7
8.7 x 100 = 870%
Example