-71.06% is the change from 470 to 136
Calculation steps:
[( 136 - 470 ) ÷ 470] x 100 = -71.06%
Formula
Percentage change = [(136 - 470) / 470] x 100
Subtract the new number by the original number
136 - 470 = -334
-334 ÷ 470 = -0.7106382978723405
-0.7106382978723405 x 100 = -71.06%