-42.3% is the change from 357 to 206
Calculation steps:
[( 206 - 357 ) ÷ 357] x 100 = -42.3%
Formula
Percentage change = [(206 - 357) / 357] x 100
Subtract the new number by the original number
206 - 357 = -151
-151 ÷ 357 = -0.42296918767507
-0.42296918767507 x 100 = -42.3%