\(g = {491 \over 443} ≈ 1{,}108 \text{.}\)

Op 1 januari 2026 is de hoeveelheid \(383 ⋅ 1{,}108 ≈ 424 \text{.}\)

Op 1 januari 2024 is de hoeveelheid \({383 \over 1{,}108} ≈ 346 \text{.}\)

Bij de veranderingen horen de groeifactoren
\(g_{1} = (100\% - 3{,}7\%) : 100\% = 0{,}963\)
en
\(g_{2} = (100\% + 2{,}2\%) : 100\% = 1{,}022 \text{.}\)

De totale groeifactor is dan
\(g_{\text{totaal}} = g_{1} ⋅ g_{2} = 0{,}963 ⋅ 1{,}022 = 0{,}984...\)

De totale toename is
\((0{,}984... ⋅ 100\%) - 100\% = -1{,}6\% \text{,}\) ofwel een afname van \(1{,}6\% \text{.}\)

Bij de veranderingen horen de groeifactoren
\(g_{1} = (100\% - 3{,}4\%) : 100\% = 0{,}966\)
en
\(g_{2} = (100\% + 2{,}5\%) : 100\% = 1{,}025 \text{.}\)

De totale groeifactor is dan
\(g_{\text{totaal}} = 0{,}966^{2} ⋅ 1{,}025^{5} = 1{,}055...\)

De totale toename is
\((1{,}055... ⋅ 100\%) - 100\% = 5{,}6\% \text{.}\)

\(g = 8 \text{.}\)

De procentuele toename is
\(8 ⋅ 100\% - 100\% = 700\% \text{.}\)

Bij de verandering hoort de groeifactor
\(g = (100\% + 2{,}3\%) : 100\% = 1{,}023 \text{.}\)

De totale groeifactor is dan
\(g_{\text{totaal}} = 1{,}023^{5} = 1{,}120...\)

De totale toename is
\((1{,}120... ⋅ 100\%) - 100\% = 12{,}0\% \text{.}\)