-49.34% is the change from 602 to 305
Calculation steps:
[( 305 - 602 ) ÷ 602] x 100 = -49.34%
Formula
Percentage change = [(305 - 602) / 602] x 100
Subtract the new number by the original number
305 - 602 = -297
-297 ÷ 602 = -0.49335548172757476
-0.49335548172757476 x 100 = -49.34%