135.96% is the change from 178 to 420
Calculation steps:
[( 420 - 178 ) ÷ 178] x 100 = 135.96%
Formula
Percentage change = [(420 - 178) / 178] x 100
Subtract the new number by the original number
420 - 178 = 242
242 ÷ 178 = 1.3595505617977528
1.3595505617977528 x 100 = 135.96%