196% is the change from 50 to 148
Calculation steps:
[( 148 - 50 ) ÷ 50] x 100 = 196%
Formula
Percentage change = [(148 - 50) / 50] x 100
Subtract the new number by the original number
148 - 50 = 98
98 ÷ 50 = 1.96
1.96 x 100 = 196%
Example