77% is the change from 100 to 177
Calculation steps:
[( 177 - 100 ) ÷ 100] x 100 = 77%
Formula
Percentage change = [(177 - 100) / 100] x 100
Subtract the new number by the original number
177 - 100 = 77
77 ÷ 100 = 0.77
0.77 x 100 = 77%
Example