-2.05% is the change from 195 to 191
Calculation steps:
[( 191 - 195 ) ÷ 195] x 100 = -2.05%
Formula
Percentage change = [(191 - 195) / 195] x 100
Subtract the new number by the original number
191 - 195 = -4
-4 ÷ 195 = -0.020512820512820513
-0.020512820512820513 x 100 = -2.05%