321.54% is the change from 65 to 274
Calculation steps:
[( 274 - 65 ) ÷ 65] x 100 = 321.54%
Formula
Percentage change = [(274 - 65) / 65] x 100
Subtract the new number by the original number
274 - 65 = 209
209 ÷ 65 = 3.2153846153846155
3.2153846153846155 x 100 = 321.54%