1204.76% is the change from 21 to 274
Calculation steps:
[( 274 - 21 ) ÷ 21] x 100 = 1204.76%
Formula
Percentage change = [(274 - 21) / 21] x 100
Subtract the new number by the original number
274 - 21 = 253
253 ÷ 21 = 12.047619047619047
12.047619047619047 x 100 = 1204.76%