290% is the change from 50 to 195
Calculation steps:
[( 195 - 50 ) ÷ 50] x 100 = 290%
Formula
Percentage change = [(195 - 50) / 50] x 100
Subtract the new number by the original number
195 - 50 = 145
145 ÷ 50 = 2.9
2.9 x 100 = 290%
Example