661.54% is the change from 26 to 198
Calculation steps:
[( 198 - 26 ) ÷ 26] x 100 = 661.54%
Formula
Percentage change = [(198 - 26) / 26] x 100
Subtract the new number by the original number
198 - 26 = 172
172 ÷ 26 = 6.615384615384615
6.615384615384615 x 100 = 661.54%