945% is the change from 20 to 209
Calculation steps:
[( 209 - 20 ) ÷ 20] x 100 = 945%
Formula
Percentage change = [(209 - 20) / 20] x 100
Subtract the new number by the original number
209 - 20 = 189
189 ÷ 20 = 9.45
9.45 x 100 = 945%
Example