970% is the change from 20 to 214
Calculation steps:
[( 214 - 20 ) ÷ 20] x 100 = 970%
Formula
Percentage change = [(214 - 20) / 20] x 100
Subtract the new number by the original number
214 - 20 = 194
194 ÷ 20 = 9.7
9.7 x 100 = 970%
Example