-42.02% is the change from 526 to 305
Calculation steps:
[( 305 - 526 ) ÷ 526] x 100 = -42.02%
Formula
Percentage change = [(305 - 526) / 526] x 100
Subtract the new number by the original number
305 - 526 = -221
-221 ÷ 526 = -0.42015209125475284
-0.42015209125475284 x 100 = -42.02%