93.75% is the change from 80 to 155
Calculation steps:
[( 155 - 80 ) ÷ 80] x 100 = 93.75%
Formula
Percentage change = [(155 - 80) / 80] x 100
Subtract the new number by the original number
155 - 80 = 75
75 ÷ 80 = 0.9375
0.9375 x 100 = 93.75%
Example