-82.07% is the change from 251 to 45
Calculation steps:
[( 45 - 251 ) ÷ 251] x 100 = -82.07%
Formula
Percentage change = [(45 - 251) / 251] x 100
Subtract the new number by the original number
45 - 251 = -206
-206 ÷ 251 = -0.8207171314741036
-0.8207171314741036 x 100 = -82.07%