-85.53% is the change from 311 to 45
Calculation steps:
[( 45 - 311 ) ÷ 311] x 100 = -85.53%
Formula
Percentage change = [(45 - 311) / 311] x 100
Subtract the new number by the original number
45 - 311 = -266
-266 ÷ 311 = -0.8553054662379421
-0.8553054662379421 x 100 = -85.53%