270.59% is the change from 51 to 189
Calculation steps:
[( 189 - 51 ) ÷ 51] x 100 = 270.59%
Formula
Percentage change = [(189 - 51) / 51] x 100
Subtract the new number by the original number
189 - 51 = 138
138 ÷ 51 = 2.7058823529411766
2.7058823529411766 x 100 = 270.59%