-83.22% is the change from 304 to 51
Calculation steps:
[( 51 - 304 ) ÷ 304] x 100 = -83.22%
Formula
Percentage change = [(51 - 304) / 304] x 100
Subtract the new number by the original number
51 - 304 = -253
-253 ÷ 304 = -0.8322368421052632
-0.8322368421052632 x 100 = -83.22%