-74.2% is the change from 283 to 73
Calculation steps:
[( 73 - 283 ) ÷ 283] x 100 = -74.2%
Formula
Percentage change = [(73 - 283) / 283] x 100
Subtract the new number by the original number
73 - 283 = -210
-210 ÷ 283 = -0.7420494699646644
-0.7420494699646644 x 100 = -74.2%