276% is the change from 50 to 188
Calculation steps:
[( 188 - 50 ) ÷ 50] x 100 = 276%
Formula
Percentage change = [(188 - 50) / 50] x 100
Subtract the new number by the original number
188 - 50 = 138
138 ÷ 50 = 2.76
2.76 x 100 = 276%
Example