-34.3% is the change from 207 to 136
Calculation steps:
[( 136 - 207 ) ÷ 207] x 100 = -34.3%
Formula
Percentage change = [(136 - 207) / 207] x 100
Subtract the new number by the original number
136 - 207 = -71
-71 ÷ 207 = -0.34299516908212563
-0.34299516908212563 x 100 = -34.3%