-31.05% is the change from 219 to 151
Calculation steps:
[( 151 - 219 ) ÷ 219] x 100 = -31.05%
Formula
Percentage change = [(151 - 219) / 219] x 100
Subtract the new number by the original number
151 - 219 = -68
-68 ÷ 219 = -0.3105022831050228
-0.3105022831050228 x 100 = -31.05%