50.56% is the change from 178 to 268
Calculation steps:
[( 268 - 178 ) ÷ 178] x 100 = 50.56%
Formula
Percentage change = [(268 - 178) / 178] x 100
Subtract the new number by the original number
268 - 178 = 90
90 ÷ 178 = 0.5056179775280899
0.5056179775280899 x 100 = 50.56%