260.64% is the change from 188 to 678
Calculation steps:
[( 678 - 188 ) ÷ 188] x 100 = 260.64%
Formula
Percentage change = [(678 - 188) / 188] x 100
Subtract the new number by the original number
678 - 188 = 490
490 ÷ 188 = 2.606382978723404
2.606382978723404 x 100 = 260.64%